CVE-2026-55402

Persistent Denial of Service via Out-Of-Bounds Read in Secure Access Servers

Published Aug 13, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
CVE-2026-55402 is an out of bounds read vulnerability in Secure Access
servers prior to version 14.57. Attackers with an ‘in the middle’
position can send specially crafted data to a server causing a
persistent denial of service.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
First Time appeared Absolute
Absolute secure Access
Vendors & Products Absolute
Absolute secure Access
Type Values Removed Values Added
Title Persistent Denial of Service via Out-Of-Bounds Read in Secure Access Servers
Type Values Removed Values Added
Title Out-of-Bounds Read Causing Persistent Denial of Service in Secure Access Server
Weaknesses CWE-787
Type Values Removed Values Added
Weaknesses CWE-125
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Out-of-Bounds Read Causing Persistent Denial of Service in Secure Access Server
Weaknesses CWE-787
Type Values Removed Values Added
Description CVE-2026-55402 is an out of bounds read vulnerability in Secure Access servers prior to version 14.57. Attackers with an ‘in the middle’ position can send specially crafted data to a server causing a persistent denial of service.
References
Metrics cvssV4_0

{'score': 8.7, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Absolute
Published
Updated
Aug 13, 2026, 7:02 PM
Reserved
Jun 16, 2026, 9:26 PM
Status
Analyzed
Published
Aug 13, 2026, 5:17 PM
Modified
Sep 4, 2026, 8:37 PM