CVE-2025-40573 Path traversal in SCALANCE LPE9403
A privileged local attacker can exploit path traversal to restore backups outside the designated folder on Siemens SCALANCE devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-40573?
CVE-2025-40573 is a medium-severity path traversal vulnerability in Siemens SCALANCE LPE9403, published on 13 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). Affected devices are vulnerable to path traversal attacks. This could allow a privileged local attacker to restore backups that are outside the backup folder.
Which versions are affected by CVE-2025-40573?
It affects 1 product.
Products include Siemens Scalance Lpe9403 Firmware.
How do I fix CVE-2025-40573?
No fix has been published for CVE-2025-40573 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-2025-40573 being exploited?
There is no known exploitation of CVE-2025-40573 in the wild and no public exploit code.
Other vulnerabilities in Siemens SCALANCE LPE9403
Sources
Also known as GHSA-63xm-x5g2-5gr3.