Junglewise Threat Intelligence

CVE-2026-40953: Absolute Security Secure Access heap overflow in certificate parsing

CVE-2026-40953 · Severity: info · CVSS 6.7 · Published 2026-07-15

Technologies: Absolute Security Secure Access. Vendors: Absolute Security.

Executive brief

Absolute Security Secure Access is a client application used to provide secure remote connectivity for mobile workers. A vulnerability in how the software processes security certificates could allow a user who already has administrative access to the device to crash the connection client. While this results in a denial of service for that specific user, it requires high-level local permissions to execute.

Technical details

A heap-based buffer overflow exists in the certificate parsing function of Absolute Security (formerly NetMotion) Secure Access clients. The vulnerability is triggered when the client processes a specially crafted certificate. An attacker must have local access to the machine and possess administrator-level privileges to exploit this flaw. Successful exploitation results in a denial of service (DoS) by crashing the Secure Access client. The issue is resolved in client versions 14.55 and later.

Affected products

  • Absolute Security (formerly NetMotion) Secure Access prior to 14.55

Timeline

  • 2026-07-15: advisory
  • 2026-07-15: disclosed

References

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