CVE-2026-55402

Severity CVSS v4.0:

HIGH

Type:

CWE-125 Out-of-bounds Read

Publication date:

13/08/2026

Last modified:

13/08/2026

Description

CVE-2026-55402 is an out of bounds read vulnerability in Secure Access <br /> servers prior to version 14.57. Attackers with an ‘in the middle’ <br /> position can send specially crafted data to a server causing a <br /> persistent denial of service.

Impact

Vector 4.0

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

Base Score: 8.70 HIGH
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
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

8.70

Severity 4.0

HIGH

References to Advisories, Solutions, and Tools

https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-55402