CVE-2026-93616 explained: what to do about the Checkpoint Multi-domain Security Management flaw

The two-minute check

1. Open your management console and look for the product name on the login screen or About page.
2. Check whether it reads "Multi-Domain Security Management" or "Quantum Security Management."
3. If you're not sure, ask whoever set up your firewalls which Check Point product manages them.

When you can stop reading

The record names only two products: Checkpoint Multi-Domain Security Management and Checkpoint Quantum Security Management. If neither name matches what your team runs, this specific record does not apply to you. The record doesn't say which builds are affected. If you're unsure, ask your provider to check the vendor advisory against your system.

What the official record says

The National Vulnerability Database (NVD) describes this as a directory traversal and file upload flaw. Directory traversal means the software can be tricked into reading or writing files outside the folder it should be limited to. It allows an unauthenticated attacker to upload and execute arbitrary scripts on the management server. This carries a Common Vulnerability Scoring System (CVSS) score of 9.8, rated CRITICAL (NVD). The scoring details show the attack comes over the network, needs no special skill, and requires no password or click from anyone. In plain terms, anyone who can reach the management server's address on the network can attempt this.

The Exploit Prediction Scoring System (EPSS) score is 0.02421, about a 2.4% probability, at the 83.47th percentile of all scored flaws (EPSS). That is a low chance of exploitation in the next 30 days. EPSS forecasts likely activity in that window; it does not measure how severe a flaw is.

What that means for a business like yours

A management server controls firewall policy across your whole network. Someone who exploits this could gain control of that policy and the systems it protects. The low EPSS number means widespread automated scanning is not common yet. This flaw is already on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it is already being used against real targets (CISA). Fixing it is straightforward once the vendor's patch is installed.

If someone else manages your IT

If a managed IT provider or internal staff member runs this system, send them a short message today. Ask if they manage any Checkpoint Multi-Domain Security Management or Quantum Security Management systems. Ask them to confirm the patch from the vendor advisory is installed. Ask them to reply with the date it was applied.

You can paste this into an email:

"Are we running Checkpoint Multi-Domain Security Management or Quantum Security Management? CVE-2026-93616 is a critical, actively exploited flaw in these products. Please confirm the patch is installed and tell me the date."

If you manage it yourself

1. Log in to your management server console with an administrator account.
2. Open the vendor advisory at support.checkpoint.com.
3. Find the hotfix or patch listed for CVE-2026-93616.
4. Download the file matching your specific product and setup.
5. Install it following the vendor's own instructions on that page.
6. Restart the management service if the advisory tells you to.
7. Write down the install date for your records.

This flaw is already on the CISA Known Exploited Vulnerabilities (KEV) catalog (CISA). Federal agencies were given a due date of 2026-09-25 to fix it. Criminals are already using this. For any business running the affected products, the honest answer is now.

Open the management console again after the patch installs. Compare the version or build number to what the vendor advisory lists as fixed. Check the advisory page for a hotfix ID that matches what you installed. If your provider handled the update, ask for a screenshot or log showing the version and the install date.

• Restrict network access to the management server to trusted addresses only. This does not fix the flaw. It narrows who can attempt to exploit it.
• Turn on logging and alerts for unusual file uploads or new script files on the server. This will not stop an attack. It may help you notice one quickly.
• Ask your provider about a temporary virtual private network (VPN) requirement for management access. This adds a barrier for outside attackers. It does not replace the vendor patch.
• Schedule the patch install as soon as possible. Interim steps buy time. They are not a permanent fix.

Do I have to do anything if we only use this at home?

Checkpoint Multi-Domain Security Management and Quantum Security Management are business tools used to manage firewalls, not home network products. If you don't run either product, this specific record does not apply to you.

Will installing the patch break anything?

The vendor advisory linked in this guide lists what changes and how to apply it. Test the patch on a backup or non-production system first, if you can. Follow the vendor's own instructions closely.

Do we need to report this to anyone?

If your business handles health records or consumer financial data, an incident involving this flaw could trigger reporting duties. Rules such as the FTC Safeguards Rule and HIPAA may apply depending on your industry. Speak with your compliance advisor about your specific obligations.

What if we don't have in-house IT staff?

LayerLogix provides managed IT services and can install the vendor patch for you. Business-hours support with after-hours emergency response is available if you need help now.

How do we prevent this kind of issue going forward?

Restricting who can reach management consoles helps a great deal. Monitoring for unusual activity and limiting administrative rights also help. LayerLogix's cybersecurity and privileged access management services cover exactly this kind of protection.

LayerLogix offers 20+ years of experience and 100% Texas-based support to businesses across The Woodlands, Round Rock, Greater Houston, DFW, and Austin. If you'd like a second set of eyes on this or any other patch, request a free IT assessment or contact us today.