CVE-2026-40953 - Vulnerability Details - OpenCVE

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

No data.

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References

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

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		https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-40953
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'}`

MITRE

Status: PUBLISHED

Assigner: Absolute

Published: 2026-07-15T19:40:50.435Z

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

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

Link: CVE-2026-40953

Vulnrichment

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

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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