CVEvulnerability
CVE-2026-55401
6.9 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-08-13
- Last modified
- 2026-09-04
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-476
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
Affected configurations
• absolute secure access (< 14.57)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness