CVE-2026-40955

Integer underflow vulnerability in Secure Access clients

Low · published July 15, 2026

CVSS v4.0
2.1
EPSS
0%
Percentile
23.8
In the wild
Unconfirmed
What it is

CVE-2026-40955 is an integer underflow

vulnerability in the traffic parsing function of Secure Access clients prior to

14.55. Attackers with intimate knowledge of and total control over the tunnel

protocol can create a non-persistent DoS against their client.

The record
Technical detail
CVSS v4.0
2.1 · LOW
Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS
0.00321 · 23.8th percentile
Published
2026-07-15T19:50Z
EPSS history
Timeline
  • 15 JUL 19:50Z
    Integer underflow vulnerability in Secure Access clients
    cvelistv5