CVE-2026-55401
Medium
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
SeverityMedium
CVSS5.3
Exploit probability—
ProductAbsolute Secure Access
PublishedAug 13, 2026
First seenAug 13, 2026
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- absolute secure_access14.57 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| absolute secure_access | v < 14.57 | 14.57 |
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