CVE-2026-22925 — HIGH (7.5)

Q: How severe is CVE-2026-22925?

CVE-2026-22925 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-22925?

Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic Cn 4100 Firmware, Siemens Simatic Cn 4100.

Vulnerability Description

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 Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Siemens	Simatic Cn 4100 Firmware	< 5.0
Siemens	Simatic Cn 4100	-

Related Weaknesses (CWE)

CWE-770

References

https://cert-portal.siemens.com/productcert/html/ssa-032379.htmlMitigationVendor Advisory

FAQ

What is CVE-2026-22925?

CVE-2026-22925 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 coul...

How severe is CVE-2026-22925?

CVE-2026-22925 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-22925?

Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic Cn 4100 Firmware, Siemens Simatic Cn 4100.