CVE-2026-55400

MEDIUMCVSS 6.5/10EPSS 0.23%

Last modified

CVE-2026-55400 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. CVE-2026-55400 is an integer underflow in Secure Access servers prior to version 14.57. Attackers with an authenticated session can send specially crafted traffic to a server in a non-default configuration and cause a persistent denial of service.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

CVE-2026-55400 is an integer underflow in Secure Access servers prior to version 14.57. Attackers with an authenticated session can send specially crafted traffic to a server in a non-default configuration and cause a persistent denial of service.

Metrics

Weakness Enumeration

Affected Software

VendorProductVersions
AbsoluteSecure Access< 14.57

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-55400?
CVE-2026-55400 is an integer underflow in Secure Access servers prior to version 14.57. Attackers with an authenticated session can send specially crafted traffic to a server in a non-default configuration and cause a persistent denial of service.
How severe is CVE-2026-55400?
CVE-2026-55400 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.
How do I fix CVE-2026-55400?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST