Windows · Microsoft · released November 10, 2026
Windows security updates, November 2026: every vulnerability, rated
Microsoft published 733 Windows vulnerabilities in November 2026, most of them on Patch Tuesday, November 10, 2026. 36 are rated Critical. None was reported as exploited when it was published. 70 more deserve attention this week; 663 can follow the normal monthly rollout. The updates that carry these fixes need a restart.
- CVEs
- 733
- Patch now
- 0
- This week
- 70
- Normal cycle
- 657
- Low
- 6
Fixed in: November 2026 Windows security update restart requiredMicrosoft release notes
Page 7 of 13 · sorted by risk, then score
Normal cycle60 on this page · tap one for its risk review
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112973Windows Kernel
Security Feature Bypass · Severity Important · CVSS 7.1
In Windows Kernel, an attacker with an ordinary user account could get around a Windows security protection once they can run code on the PC. Microsoft severity Important, CVSS 7.1. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-119988Windows SMB
Remote Code Execution · Severity Important · CVSS 7.1
In Windows SMB, an attacker with an ordinary user account could run their own code over the network, but only if someone opens a file, link or message. Microsoft severity Important, CVSS 7.1. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-103571Windows CNG Key Isolation Service
Elevation of Privilege · Severity Important · CVSS 7
In Windows CNG Key Isolation Service, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105017Volume Shadow Copy
Elevation of Privilege · Severity Important · CVSS 7
In Volume Shadow Copy, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105024Windows Storage Spaces Controller
Elevation of Privilege · Severity Important · CVSS 7
In Windows Storage Spaces Controller, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105504Windows Kernel
Elevation of Privilege · Severity Important · CVSS 7
In Windows Kernel, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105509Windows Resilient File System (ReFS)
Elevation of Privilege · Severity Important · CVSS 7
In Windows Resilient File System (ReFS), an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation unlikely". Fixed in the November 2026 Windows security update (KB5132059) for 2 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105510Windows Secure Socket Tunneling Protocol (SSTP)
Elevation of Privilege · Severity Important · CVSS 7
In Windows Secure Socket Tunneling Protocol (SSTP), an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105511Windows Point-to-Point Protocol over Ethernet (PPPoE)
Elevation of Privilege · Severity Important · CVSS 7
In Windows Point-to-Point Protocol over Ethernet (PPPoE), an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105513Windows Kernel
Elevation of Privilege · Severity Important · CVSS 7
In Windows Kernel, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105522Winlogon
Elevation of Privilege · Severity Important · CVSS 7
In Winlogon, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 24 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105525Windows Network Connection Broker
Elevation of Privilege · Severity Important · CVSS 7
In Windows Network Connection Broker, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105526Winsock
Elevation of Privilege · Severity Important · CVSS 7
In Winsock, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105529Windows Storage
Elevation of Privilege · Severity Important · CVSS 7
In Windows Storage, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105533Windows COM
Elevation of Privilege · Severity Important · CVSS 7
In Windows COM, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105540Windows Error Reporting
Elevation of Privilege · Severity Important · CVSS 7
In Windows Error Reporting, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105545Windows Installer
Elevation of Privilege · Severity Important · CVSS 7
In Windows Installer, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5126646, KB5126651, KB5126653) for 32 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105546Windows Management Instrumentation
Elevation of Privilege · Severity Important · CVSS 7
In Windows Management Instrumentation, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105547Windows Setup and Deployment
Elevation of Privilege · Severity Important · CVSS 7
In Windows Setup and Deployment, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 24 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105553Windows Filtering Platform (WFP)
Elevation of Privilege · Severity Important · CVSS 7
In Windows Filtering Platform (WFP), an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 24 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105554Windows Background Intelligent Transfer Service (BITS)
Elevation of Privilege · Severity Important · CVSS 7
In Windows Background Intelligent Transfer Service (BITS), an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105565Windows MIDI Service Module Elevation of Privileges Vulnerability
Elevation of Privilege · Severity Important · CVSS 7
In Windows MIDI Service Module Elevation of Privileges Vulnerability, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5132043, KB5132059, KB5132061) for 8 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105566Windows Kernel
Elevation of Privilege · Severity Important · CVSS 7
In Windows Kernel, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105567Windows Print Spooler Components
Elevation of Privilege · Severity Important · CVSS 7
In Windows Print Spooler Components, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5132043) for 10 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105574Windows MIDI Service Module Elevation of Privileges Vulnerability
Elevation of Privilege · Severity Important · CVSS 7
In Windows MIDI Service Module Elevation of Privileges Vulnerability, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5132043, KB5132059, KB5132061) for 8 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105582Windows DWM Core Library
Elevation of Privilege · Severity Important · CVSS 7
In Windows DWM Core Library, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 22 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105583Windows DWM Core Library
Elevation of Privilege · Severity Important · CVSS 7
In Windows DWM Core Library, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 22 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105586Microsoft Windows SCSI Class System File
Elevation of Privilege · Severity Important · CVSS 7
In Microsoft Windows SCSI Class System File, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105587Windows OLE DB
Elevation of Privilege · Severity Important · CVSS 7
In Windows OLE DB, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-105589Windows Wireless Networking
Elevation of Privilege · Severity Important · CVSS 7
In Windows Wireless Networking, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131080, KB5131085, KB5131087) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-108406Windows Network Connection Broker
Elevation of Privilege · Severity Important · CVSS 7
In Windows Network Connection Broker, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-108413Windows Telephony Service
Elevation of Privilege · Severity Important · CVSS 7
In Windows Telephony Service, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-108414Windows Projected File System Filter Driver
Elevation of Privilege · Severity Important · CVSS 7
In Windows Projected File System Filter Driver, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 24 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112753Windows Container Isolation FS Filter Driver (unionfs.sys)
Elevation of Privilege · Severity Important · CVSS 7
In Windows Container Isolation FS Filter Driver (unionfs.sys), an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5132059) for 2 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112756Windows Filtering Platform (WFP)
Elevation of Privilege · Severity Important · CVSS 7
In Windows Filtering Platform (WFP), an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112761Windows Broadcast DVR User Service
Elevation of Privilege · Severity Important · CVSS 7
In Windows Broadcast DVR User Service, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131085, KB5131087, KB5131096) for 18 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112763Windows Cloud Files Mini Filter Driver
Elevation of Privilege · Severity Important · CVSS 7
In Windows Cloud Files Mini Filter Driver, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation unlikely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 24 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112764Windows USB Driver
Elevation of Privilege · Severity Important · CVSS 7
In Windows USB Driver, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112765Windows Print Spooler Components
Elevation of Privilege · Severity Important · CVSS 7
In Windows Print Spooler Components, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112766Windows exFAT File System
Elevation of Privilege · Severity Important · CVSS 7
In Windows exFAT File System, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation unlikely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 24 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112790Windows Kernel
Elevation of Privilege · Severity Important · CVSS 7
In Windows Kernel, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation unlikely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112792Windows Print Spooler Components
Elevation of Privilege · Severity Important · CVSS 7
In Windows Print Spooler Components, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112796Windows Event Collector Service
Elevation of Privilege · Severity Important · CVSS 7
In Windows Event Collector Service, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112797Windows Print Spooler Components
Elevation of Privilege · Severity Important · CVSS 7
In Windows Print Spooler Components, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112800Windows Diagnostic Policy Service
Elevation of Privilege · Severity Important · CVSS 7
In Windows Diagnostic Policy Service, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131085, KB5131087, KB5131096) for 20 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112804Windows exFAT File System
Elevation of Privilege · Severity Important · CVSS 7
In Windows exFAT File System, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112810Windows Cloud Files Mini Filter Driver
Elevation of Privilege · Severity Important · CVSS 7
In Windows Cloud Files Mini Filter Driver, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 24 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112812Windows SMB Client
Elevation of Privilege · Severity Important · CVSS 7
In Windows SMB Client, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112968Windows COM
Elevation of Privilege · Severity Important · CVSS 7
In Windows COM, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112971Windows SMB Client
Elevation of Privilege · Severity Important · CVSS 7
In Windows SMB Client, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5132059) for 2 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112976Windows Print Spooler Components
Elevation of Privilege · Severity Important · CVSS 7
In Windows Print Spooler Components, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112986Windows DWM Core Library
Elevation of Privilege · Severity Important · CVSS 7
In Windows DWM Core Library, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 22 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112987Windows Modern Device Management (MDM)
Elevation of Privilege · Severity Important · CVSS 7
In Windows Modern Device Management (MDM), an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-112989Windows Servicing Stack Updates
Elevation of Privilege · Severity Important · CVSS 7
In Windows Servicing Stack Updates, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131080, KB5132061) for 8 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-113750Windows Device Inventory
Elevation of Privilege · Severity Important · CVSS 7
In Windows Device Inventory, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-113751Windows Fast FAT Driver
Elevation of Privilege · Severity Important · CVSS 7
In Windows Fast FAT Driver, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 24 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-113755Windows Filter Manager
Elevation of Privilege · Severity Important · CVSS 7
In Windows Filter Manager, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-113761Windows Container Isolation FS Filter Driver (unionfs.sys)
Elevation of Privilege · Severity Important · CVSS 7
In Windows Container Isolation FS Filter Driver (unionfs.sys), an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5132059) for 2 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-113762Windows Broadcast DVR User Service
Elevation of Privilege · Severity Important · CVSS 7
In Windows Broadcast DVR User Service, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131085, KB5131087, KB5131096) for 18 supported Windows versions; a restart is required.
- Normal cycleWindowsNovember 10, 2026
CVE-2026-113769Windows COM+ Event System Service
Elevation of Privilege · Severity Important · CVSS 7
In Windows COM+ Event System Service, an attacker with an ordinary user account could take higher privileges once they can run code on the PC. Microsoft severity Important, CVSS 7.0. Microsoft rates it "exploitation less likely". Fixed in the November 2026 Windows security update (KB5131077, KB5131080, KB5131085) for 28 supported Windows versions; a restart is required.
Why an MSP manages this
Reading the list is the easy part
Nobody running a business reads all of them, and nobody should have to. The work is deciding which ones matter today, testing the fixes, getting them onto every PC and Mac without breaking the workday, and proving it was done.
- 01
Triage that starts with the exploited ones
Most of these fixes can ride the normal monthly rollout. A handful need action the same day. Telling them apart, every month, on every machine, is the core of the work, and it is the part an office manager rarely has time for.
- 02
Testing before everyone gets it
Updates go to a test ring and a pilot group first, so a broken accounting package or design tool shows up on two machines instead of forty, and the rollout pauses until it is sorted.
- 03
Restarts that don't wreck the workday
Windows updates usually need a restart and macOS updates often do. Deadlines, maintenance windows and grace periods get the fix installed without forcing a reboot in the middle of a client call.
- 04
Macs managed as seriously as PCs
Windows patching tools don't patch Macs. macOS updates need their own install-by deadlines through device management, and major upgrades need the same compatibility testing a Windows feature update gets.
- 05
A plan for machines that can't update
Hardware that ages out and versions past end of support stop getting every fix. They need a decision, isolate, upgrade or replace, before they become the easiest way in.
- 06
Proof when someone asks
Cyber insurance applications, customer security questionnaires and frameworks such as the FTC Safeguards Rule all ask how you keep systems patched. A managed service keeps the inventory and the reports that answer them.
The ins and outs
What keeping Windows and Mac patched actually involves
Windows
Patch Tuesday, and the exceptions
Microsoft ships security updates on the second Tuesday of each month, and out of band when something can't wait. This log marks the out-of-band ones.
Cumulative updates
Each month's Windows update carries the earlier months' fixes, so a PC that missed one catches up with the next, as long as it actually installs.
Fixed first, announced later
Some fixes ship before the vulnerability is disclosed. This log flags them, because a PC that is already current is already covered.
Rings, deferrals and deadlines
Windows Update for Business and Intune let you delay updates for a test group, set an install-by deadline and give a grace period before a forced restart.
Known Issue Rollback and safeguard holds
Microsoft can quietly roll back a change that breaks something, and holds back feature updates from PCs it knows will have trouble. Both explain why two PCs on the same network can be on different builds.
Feature updates and end of support
Each Windows version is serviced for a fixed period. Windows 10 PCs past end of support only get security fixes through the paid Extended Security Updates program.
Mac
No fixed release day
Apple publishes security updates when they are ready, often several times a month around a major release, so Mac patching runs on alerts, not a calendar.
Updates versus upgrades
A point update (26.7 to 26.7.1) fixes problems. A major upgrade (Tahoe to Golden Gate) changes the system and needs the same app testing as a Windows feature update.
Older versions get some fixes, not all
Apple's deployment guide says not every security issue is fixed in previous major versions. Staying a version behind is a choice with a cost, not a safe default.
Install-by deadlines through device management
Without enforcement, a macOS update prompt can be put off again and again. Device management can set a deadline so the update installs on schedule.
Macs that age out
When a Mac can no longer run a current macOS version, it stops getting the full set of fixes. Inventory by model and macOS version shows which ones are next.
Apple Business for zero-touch setup
New Macs enrolled through Apple Business arrive already managed, so update policy applies from the first login instead of after someone remembers to enroll them.
Both platforms
Third-party apps aren't on these lists
Browsers, PDF readers, accounting software, VPN clients and plug-ins patch on their own schedules. A machine can be current on Windows or macOS and still exposed through an app.
Firmware and drivers
BIOS and UEFI firmware, docks and network gear get security fixes too, and they rarely update themselves.
Recovery keys before big changes
Before a feature update or a major macOS upgrade, confirm BitLocker and FileVault recovery keys are escrowed somewhere you can reach.
Laptops that are rarely in the office
Remote and travelling staff need updates delivered over the internet with the same deadlines as office machines, or they drift months behind.
You can't patch what you can't see
An up-to-date inventory of every PC and Mac, with its version and last update, is what turns a list like this one into a finished job.