What’s Vulnerable › Vulnerabilities
CVE-2026-40953: Heap overflow in Secure Access clients
- Severity: medium (CVSS 4.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-15 · updated 2026-10-24
- Weakness: CWE-787
Description
CVE-2026-40953 is a heap overflow in the certificate parsing function of Secure Access clients prior to 14.55. Attackers with local access and administrator permissions can create a denial of service attack against the client over which they have control.
Affected products
- Absolute Security Secure Access: before 14.55 — fixed in 14.55
How to fix
Upgrade to a fixed version: Absolute Security Secure Access 14.55. Check the vendor advisory for mitigations.
References
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