CVE-2026-22924

CriticalCVSS 9.1/10Last modified Oct 26, 2026

Description

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.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-306

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 26, 2026
NVD status: Analyzed

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