CVE-2026-22924 CRITICAL

CVE-2026-22924

Vendor Siemens
Product SIMATIC CN 4100
Weakness CWE-306 · Missing auth
Published May 12, 2026
Last update May 13, 2026

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 12, 2026 CVE published
May 13, 2026 Record updated