Integer Underflow Vulnerability in Secure Access Servers by Absolute Software
CVE-2026-55400

6MEDIUM

Key Information:

Vendor

Absolute Security

Status
Secure Access
Vendor
CVE Published:
13 August 2026

What is CVE-2026-55400?

An integer underflow vulnerability exists in Secure Access servers prior to version 14.57. This flaw allows attackers, who have an authenticated session, to exploit the server by sending specially crafted traffic. If the server is configured non-default, it may lead to a persistent denial of service condition, severely impacting availability.

Affected Version(s)

Secure Access 0 < 14.57

References

https://www.absolute.com/platform/security-information/vu...

CVSS V4

Score:
6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.