CVE-2026-40953 is a heap overflow in the
certificate parsing function of Secure Access clients prior to 14.55. Attackers
with local access and administrator permissions can create a denial of service
attack against the client over which they have control.

Attack Vector Local

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00073.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Absolute Security Secure Access unaffected
Version Status Constraints
0 affected < 14.55

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40953 cve-icon
History

Thu, 16 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787
Metrics ssvc

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

Wed, 15 Jul 2026 19:45:00 +0000

Type Values Removed Values Added
Description CVE-2026-40953 is a heap overflow in the certificate parsing function of Secure Access clients prior to 14.55. Attackers with local access and administrator permissions can create a denial of service attack against the client over which they have control.
Title Heap overflow in Secure Access clients
References
Metrics cvssV4_0

{'score': 6.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Absolute

Published:

Updated: 2026-07-16T13:15:46.358Z

Reserved: 2026-04-16T00:19:03.573Z

Link: CVE-2026-40953

cve-icon Vulnrichment

Updated: 2026-07-16T13:15:41.987Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-17T04:45:10Z

Weaknesses