CVE-2026-40953

MEDIUM

Heap overflow in Secure Access clients

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 4.4
EPSS 0.0007
EPSS Percentile 0.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (2)
absolute/secure_access < 14.55
Absolute Security/Secure Access < 14.55
Published Jul 15, 2026
Tracked Since Jul 16, 2026