CVE-2026-35225CWE-754

Improper timeout handling in CODESYS EtherNetIP

High · published April 23, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
46.2
In the wild
Unconfirmed
What it is

An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate clients from establishing new connections.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
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
0.00566 · 46.2th percentile
Weakness
CWE-754 · Improper Check for Unusual or Exceptional Conditions
Published
2026-04-23T13:54Z
EPSS history
Timeline
  • 23 APR 13:54Z
    Improper timeout handling in CODESYS EtherNetIP
    cvelistv5