Vulnerability in Siemens Gridscale X Prepay
CVE-2025-40806
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000
Affected products
- Siemens Gridscale X Prepay — versions 0
- Siemens Gridscale X Prepay
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/html/ssa-356310.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-40806?
- CVE-2025-40806 is a medium-severity vulnerability in Siemens Gridscale X Prepay, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2025-12-09.
- How severe is CVE-2025-40806?
- Medium severity. CVSS v3 base score is 5.3 out of 10.