# CVE-2025-40806

## Summary

- **CVE ID:** CVE-2025-40806
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-204
- **Published:** Dec 9, 2025
- **Last Modified:** Mar 12, 2026

## 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.

## Affected Products

- Siemens — Gridscale X Prepay (0)

## References

- [CNA](https://cert-portal.siemens.com/productcert/html/ssa-356310.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.46%
- **EPSS Percentile:** 38.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._