What’s Vulnerable › Vulnerabilities
CVE-2026-22924
- Severity: critical (CVSS 9.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-12 · updated 2026-10-26
- Weakness: CWE-306
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.
Affected products
- Siemens SIMATIC CN 4100: before 5.0 — fixed in 5.0
How to fix
Upgrade to a fixed version: Siemens SIMATIC CN 4100 5.0. Check the vendor advisory for mitigations.
References
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