What is CVE-2026-22923?

CVE-2026-22923 is a high-severity vulnerability in Siemens Nx, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-02-10.

How severe is CVE-2026-22923?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Siemens Nx

CVE-2026-22923

A vulnerability has been identified in NX (All versions < V2512), NX (Managed Mode) (All versions < V2512). The affected application contains a data validation vulnerability that could allow an attacker with local access to interfere with…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Siemens Nx — versions 0
Siemens Nx (Managed Mode) — versions 0

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

productcert@siemens.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-22923?: CVE-2026-22923 is a high-severity vulnerability in Siemens Nx, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-02-10.
How severe is CVE-2026-22923?: High severity. CVSS v3 base score is 7.8 out of 10.