Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2026-22924 |
| Alert Source | GitHub Advisory - Critical Vulnerability |
| CVE Publication Year | 2026 |
| Date Published | 2026-05-12 |
| Vendor | Siemens |
| Product | SIMATIC CN 4100 |
| CVSS Score | 9.1 (critical) |
| EPSS Score | No data |
| CISA KEV | No |
| Ransomware | Not confirmed |
Vulnerability 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.
Required Actions
Apply vendor patches or mitigations as soon as available.
Who Is Affected?
This vulnerability affects SIMATIC CN 4100 by Siemens. Check if your organization uses this software and requires updates.
Sources
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