CVE-2026-22925

HighCVSS 7.5/10Last modified Oct 24, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-770

Affected software

Vendor	Product	Versions
Siemens	SIMATIC CN 4100	< V5.0

References

https://cert-portal.siemens.com/productcert/html/ssa-032379.htmlMitigation, Vendor Advisory

Timeline

Published: May 12, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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