CVE-2026-35225

EUVD-2026-25222
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
CERTVDECNA
8.7 HIGH
NETWORK
LOW
NONE
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
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
codesysethernetip
1.0.0.0 ≤
𝑥
< 4.9.0.0
CNA
Common Weakness Enumeration
References
https://codesys.csaf-tp.certvde.com/.well-known/csaf/white/2026/advisory2026-04_vde-2026-040.json
https://www.certvde.com/en/advisories/VDE-2026-040/