CVE-2025-40806 Information disclosure in Gridscale X Prepay
Unauthenticated attackers can enumerate valid users via distinguishable responses, facilitating targeted brute-force attacks against Gridscale X Prepay.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-40806?
CVE-2025-40806 is a medium-severity vulnerability in Siemens Gridscale X Prepay, published on 9 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been identified in Gridscale X Prepay (All versions < V4.2.1). The affected application is vulnerable to user enumeration due to distinguishable responses. This could allow an unauthenticated remote attacker to determine if a user is valid or not, enabling a brute force attack with valid users.
Weakness: CWE-204
Which versions are affected by CVE-2025-40806?
It affects 1 product.
Products include Siemens Gridscale X Prepay.
How do I fix CVE-2025-40806?
No fix has been published for CVE-2025-40806 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-40806 being exploited?
There is no known exploitation of CVE-2025-40806 in the wild and no public exploit code.
Other vulnerabilities in Siemens Gridscale X Prepay
Sources
Also known as GHSA-38mg-mw32-j4p4.