CVE-2026-22925

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cert-portal.siemens.com/productcert/html/ssa-032379.html	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:siemens:simatic_cn_4100_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:simatic_cn_4100:-:*:*:*:*:*:*:*

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad ha sido identificada en SIMATIC CN 4100 (Todas las versiones anteriores a V5.0). La aplicación afectada es susceptible al agotamiento de recursos al ser sometida a un alto volumen de paquetes TCP SYN. Esto podría permitir a un atacante dejar el servicio no disponible y causar condiciones de denegación de servicio al sobrecargar los recursos del sistema.

Information

Published : 2026-05-12 10:16

Updated : 2026-10-24 13:10

NVD link : CVE-2026-22925

Mitre link : CVE-2026-22925

CVE.ORG link : CVE-2026-22925

JSON object : View

Products Affected

siemens

simatic_cn_4100_firmware
simatic_cn_4100

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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