CVE-2026-55400
MediumCVSS 6.0Exploitation Probability (EPSS)
Low risk14th percentile - higher than 14% of all known CVEs
Summary
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.
Risk Assessment
The risk is the possibility of a persistent DoS attack by an authenticated user, which could lead to prolonged service unavailability.
Recommendation
It is recommended to upgrade Secure Access servers to version 14.57 or later, which includes a fix for this vulnerability.
Original NVD description (English source)
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.