{"id":"CVE-2025-40806","title":"A vulnerability has been identified in Gridscale X Prepay (All versions < V4.2.1)","summary":"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 determ…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-204"],"vendor":"siemens","product":"gridscale_x_prepay","affected":["gridscale_x_prepay < 4.2.1"],"patched":["gridscale_x_prepay 4.2.1"],"published":"2025-12-09","updated":"2026-10-07","sourceUpdated":"2026-10-07T20:10:01.970","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-40806","references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-356310.html","label":"productcert@siemens.com"}],"tags":["nvd"],"epss":0.00456,"epssPercentile":0.37487,"ingestedAt":"2026-10-07T20:46:46.789Z","slug":"CVE-2025-40806","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `gridscale_x_prepay < 4.2.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `gridscale_x_prepay 4.2.1`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}