CVE-2026-76992CWE-770denial-of-service

CVE-2026-76992

High · published September 30, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
24.6
In the wild
Unconfirmed
What it is

The CODESYS Gateway Client allocates memory based on a size field in a gateway response without enforcing an appropriate upper limit. An unauthenticated remote attacker controlling a malicious gateway can exploit this behavior to trigger excessive memory consumption, resulting in a denial-of-service condition thus leading to a total loss of availablity.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00327 · 24.6th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-09-30T15:16Z
References (1)
EPSS history
Timeline
  • 02 OCT 03:46Z
    EPSS moved — → 1%
    epss
  • 30 SEP 11:07Z
    Uncontrolled Memory Allocation in CODESYS Gateway Client
    cvelistv5