CVE-2026-40951 Memory corruption in Secure Access Windows clients prior to 14.50

Medium 6.8 Published 30 Apr 2026 Updated 1 May 2026

Local attackers can trigger a denial of service in Absolute Secure Access Windows clients by sending malformed data to an API.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-40951?

CVE-2026-40951 is a medium-severity memory corruption vulnerability in Absolute Secure Access, published on 30 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

CVE-2026-40951 is a memory corruption vulnerability on Secure Access Windows clients prior to 14.50. Attackers with local control of the Windows client can send malformed data to an API and trigger a denial of service.

Weakness: CWE-400

Which versions are affected by CVE-2026-40951?

It affects 1 product.

Products include Absolute Secure Access.

How do I fix CVE-2026-40951?

No fix has been published for CVE-2026-40951 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-40951 being exploited?

There is no known exploitation of CVE-2026-40951 in the wild and no public exploit code.

All Absolute Secure Access vulnerabilities

Sources

Also known as GHSA-524g-f668-hjfv.