A vulnerability has been identified in Polarion V2310 (All versions), Polarion V2404 (All versions < V2404.2). The login implementation of the affected application contains an observable response discrepancy vulnerability when validating usernames. This could allow an unauthenticated remote attacker to distinguish between valid and invalid usernames.
Conclusion & alert: CVE-2024-51447 is rated Moderate Risk (41/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.17%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-09 | 0.07% | 0.17% | +0.10% |
| 2 | 2026-01-27 | 0.04% | 0.07% | +0.02% |
| 3 | 2025-11-21 | — | 0.04% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.9 | 4.0 | MEDIUM |
|
— | — | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| siemens | polarion_alm | >= 2404, < 2410 | cpe:2.3:a:siemens:polarion_alm:*:*:*:*:*:*:*:* |
| siemens | polarion_alm | 2310 | cpe:2.3:a:siemens:polarion_alm:2310:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/html/ssa-162255.html | Vendor Advisory |