What is CVE-2025-40738?

CVE-2025-40738 is a high-severity vulnerability in Siemens Sinec Nms, classified under Path Traversal. CVSS score: 8.8/10. Published 2025-07-08.

How severe is CVE-2025-40738?

High severity. CVSS v3 base score is 8.8 out of 10.

Path Traversal in Siemens Sinec Nms

CVE-2025-40738

A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application does not properly validate file paths when extracting uploaded ZIP files. This could allow an attacker to write arbitrary files to restricted locations and potentially execute code with elevated privileges (ZDI-CAN-26572).

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.087 (94.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Siemens Sinec Nms — versions 0
Siemens Sinec_nms

Weakness classification (CWE)

CWE-22 — Path Traversal

References

productcert@siemens.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-40738?: CVE-2025-40738 is a high-severity vulnerability in Siemens Sinec Nms, classified under Path Traversal. CVSS score: 8.8/10. Published 2025-07-08.
How severe is CVE-2025-40738?: High severity. CVSS v3 base score is 8.8 out of 10.