CVE-2026-55401

State: Published
Severity: 6.9 Medium
Published: Aug 13, 2026
Updated: Aug 13, 2026
Reserved: Jun 16, 2026

Description

CVE-2026-55401 is a null dereference vulnerability on the load-balancing sub-system of Secure Access servers prior to 14.57. Attackers can send an unauthenticated packet to a Secure Access server with load balancing enabled, which results in the internal load balancer crashing. After a successful attack, the Secure Access server is still able to accept connections and is still able to issue a failover to connected clients. ‍ https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	Absolute

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
Secure AccessAbsolute Security	before 14.57Affected

References

https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-55401

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