CVE-2026-40950 Buffer overflow in the Secure Access server prior to 14.50
Attackers can cause a denial of service in the Secure Access server by sending specially crafted messages from a modified client.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-40950?
CVE-2026-40950 is a high-severity memory corruption vulnerability in Absolute Secure Access, published on 30 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
CVE-2026-40950 is a buffer overflow vulnerability in the Secure Access server prior to 14.50. Attackers with control of a modified client can send a specially crafted message to the server and cause a denial of service
Weakness: CWE-121
Which versions are affected by CVE-2026-40950?
It affects 1 product.
Products include Absolute Secure Access.
How do I fix CVE-2026-40950?
No fix has been published for CVE-2026-40950 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-2026-40950 being exploited?
There is no known exploitation of CVE-2026-40950 in the wild and no public exploit code.
Other vulnerabilities in Absolute Secure Access
- CVE-2026-55402 Denial of service in Secure Access
- CVE-2026-33445 Memory management vulnerability in Secure Access servers
- CVE-2025-49080 Memory management vulnerability in Absolute Secure Access server versions 9.0 to 13.54
- CVE-2026-40952 Privilge misconfiguration in Secure Access installers
- CVE-2026-33451 Arbitrary read/write vulnerability in Windows clients prior to 14.50
Sources
Also known as GHSA-c9f4-827x-gpm5.