CVE-2025-40581 Auth bypass in SCALANCE LPE9403
A local attacker can bypass authentication in the SINEMA Remote Connect Edge Client to read and modify configuration parameters on SCALANCE LPE9403 devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-40581?
CVE-2025-40581 is a high-severity authentication bypass 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 < V2.1 HF0 with SINEMA Remote Connect Edge Client installed). Affected devices are vulnerable to an authentication bypass. This could allow a non-privileged local attacker to bypass the authentication of the SINEMA Remote Connect Edge Client, and to read and modify the configuration parameters.
Weakness: CWE-288
Which versions are affected by CVE-2025-40581?
It affects 1 product.
Products include Siemens Scalance Lpe9403 Firmware.
How do I fix CVE-2025-40581?
No fix has been published for CVE-2025-40581 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-40581 being exploited?
There is no known exploitation of CVE-2025-40581 in the wild and no public exploit code.
Other vulnerabilities in Siemens SCALANCE LPE9403
Sources
Also known as GHSA-xww6-q5p3-h6pp.