CVE-2026-22924

EUVD-2026-29423
A vulnerability has been identified in SIMATIC CN 4100 (All versions < V5.0). The affected application does not properly restrict unauthenticated connections and is susceptible to resource exhaustion conditions.
This could allow an attacker to disrupt normal operations or perform unauthorized actions, potentially impacting system availability and integrity.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
siemensCNA
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 11%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
siemenssimatic_cn_4100
𝑥
< 5.0
CNA
Common Weakness Enumeration
References
https://cert-portal.siemens.com/productcert/html/ssa-032379.html