CVE-2025-40738 Path traversal in SINEC NMS
Attackers can exploit path traversal in ZIP extraction to write arbitrary files and execute code with elevated privileges on Siemens SINEC NMS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-40738?
CVE-2025-40738 is a high-severity path traversal vulnerability in Siemens SINEC NMS, published on 8 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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).
Weakness: CWE-22
Which versions are affected by CVE-2025-40738?
It affects 1 product.
Products include Siemens Sinec Nms.
How do I fix CVE-2025-40738?
No fix has been published for CVE-2025-40738 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-40738 being exploited?
There is no known exploitation of CVE-2025-40738 in the wild and no public exploit code.
Other vulnerabilities in Siemens SINEC NMS
Sources
Also known as GHSA-fq7w-h2xr-rr5c.