CVE-2026-40953

Medium

Open

TLP:CLEAR

Heap overflow in Secure Access clients

NVD CVE.org

DDoS

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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.

Details

CVSS Score: 6.7
EPSS Score ⓘ: 0.07%

0.1th percentile
CVSS 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
Confidence: 90%
Published: Jul 15, 2026
Last Modified: Jul 15, 2026

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