Findings

CVE-2026-22924

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V5.0).

Published May 12, 2026 · updated Jun 29, 2026 · siemens simatic cn 4100 firmware

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.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2026 · NIST NVD

    Detected

    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.

  2. Jun 29, 2026 · NIST NVD

    Updated

    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

  • cpe siemens/simatic cn 4100 firmwareversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-22924

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-22924

    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 perfor

    nvd.nist.gov

References

CVE-2026-22924 · ZeroDay Findings