CVE-2026-22925

EUVD-2026-29424
A vulnerability has been identified in SIMATIC CN 4100 (All versions < V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets
This could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
siemensCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 24.88%
Affected Products (NVD)
VendorProductVersion
siemenssimatic_cn_4100_firmware
𝑥
< 5.0
𝑥
= Vulnerable software versions
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