CVE-2025-27397 Path traversal in SCALANCE LPE9403
An authenticated privileged attacker can read and write arbitrary files on Siemens SCALANCE LPE9403 devices via path traversal in log handling.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-27397?
CVE-2025-27397 is a medium-severity path traversal vulnerability in Siemens SCALANCE LPE9403, published on 11 Mar 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0). Affected devices do not properly limit user controlled paths to which logs are written and from where they are read. This could allow an authenticated highly-privileged remote attacker to read and write arbitrary files in the filesystem, if and only if the malicious path ends with 'log' .
Weakness: CWE-22
Which versions are affected by CVE-2025-27397?
It affects 1 product.
Products include Siemens Scalance Lpe9403 Firmware.
How do I fix CVE-2025-27397?
No fix has been published for CVE-2025-27397 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-2025-27397 being exploited?
There is no known exploitation of CVE-2025-27397 in the wild and no public exploit code.
Other vulnerabilities in Siemens SCALANCE LPE9403
Sources
Also known as GHSA-gqcm-6vpg-xm6w.