CVE-2026-55400

Severity CVSS v4.0:

MEDIUM

Type:

CWE-190 Integer Overflow or Wraparound

Publication date:

13/08/2026

Last modified:

28/08/2026

Description

CVE-2026-55400 is an integer underflow in Secure Access servers prior to<br /> version 14.57. Attackers with an authenticated session can send <br /> specially crafted traffic to a server in a non-default configuration and<br /> cause a persistent denial of service.

Impact

Vector 4.0

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 6.00 MEDIUM
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Attack Requirements (AT): None
Privileges Required (PR): Low
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): None
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0

6.00

Severity 4.0

MEDIUM

References to Advisories, Solutions, and Tools

https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-55400