CVE-2026-40953

Heap overflow in Secure Access clients

Medium · published July 15, 2026

CVSS v4.0
6.7
EPSS
0%
Percentile
0.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.7 · MEDIUM
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
EPSS
0.00098 · 0.7th percentile
Published
2026-07-15T19:40Z
EPSS history
Timeline
  • 15 JUL 19:40Z
    Heap overflow in Secure Access clients
    cvelistv5