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THREAT OPS › Threat News › [NVD] CVE-2026-55400 (MEDIUM 6.5) — 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.

[NVD] CVE-2026-55400 (MEDIUM 6.5) — 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.

mednvdPublished 2026-08-13

CVE-2026-55400 CVSS: 6.5 MEDIUM Published: 2026-08-13T16:18:07.720

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.

Indicators of compromise

CVE-2026-55400cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-55400