How severe is CVE-2024-51447?

CVE-2024-51447 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2024-51447 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-51447?

CVE-2024-51447 primarily affects Siemens Polarion Alm. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-51447?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-51447 have an EU (EUVD) identifier?

Yes. CVE-2024-51447 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54477.

When was CVE-2024-51447 published?

CVE-2024-51447 was published on 2025-05-13 and last updated on 2026-06-17.

CVE-2024-51447

CVE-2024-51447 is a medium-severity vulnerability in Siemens Polarion Alm with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-204.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54477
Weakness: CWE-204
Affected product: Siemens Polarion Alm
Published: 2025-05-13
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2024-51447?: 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.
How severe is CVE-2024-51447?: CVE-2024-51447 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2024-51447 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-51447?: CVE-2024-51447 primarily affects Siemens Polarion Alm. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-51447?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-51447 have an EU (EUVD) identifier?: Yes. CVE-2024-51447 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54477.
When was CVE-2024-51447 published?: CVE-2024-51447 was published on 2025-05-13 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/html/ssa-162255.html

Affected products (2)

cpe:2.3:a:siemens:polarion_alm:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:polarion_alm:2310:*:*:*:*:*:*:*

More vulnerabilities in Siemens Polarion Alm

CVE-2023-50236 — High (CVSS 7.8): A vulnerability has been identified in Polarion ALM (All versions < V2404.0). The affected product is vulnerable due to…
CVE-2024-23813 — High (CVSS 7.3): A vulnerability has been identified in Polarion ALM (All versions < V2404.0). The REST API endpoints of doorsconnector…
CVE-2024-51446 — Medium (CVSS 6.5): A vulnerability has been identified in Polarion V2310 (All versions), Polarion V2404 (All versions < V2404.4). The file…
CVE-2024-51445 — Medium (CVSS 6.5): A vulnerability has been identified in Polarion V2310 (All versions), Polarion V2404 (All versions < V2404.4). The…
CVE-2024-51444 — Medium (CVSS 6.5): A vulnerability has been identified in Polarion V2310 (All versions), Polarion V2404 (All versions < V2404.4). The…
CVE-2021-44478 — Medium (CVSS 6.1): A vulnerability has been identified in Polarion ALM (All versions < V21 R2 P2), Polarion WebClient for SVN (All…

All CVEs affecting Siemens Polarion Alm →

Other CWE-204 vulnerabilities

CVE-2018-25350 — Critical (CVSS 9.8): userSpice 4.3.24 contains a username enumeration vulnerability that allows unauthenticated attackers to discover valid…
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CVE-2025-12455 — High (CVSS 7.5): Observable response discrepancy vulnerability in OpenText™ Vertica allows Password Brute Forcing. The…
CVE-2025-46390 — High (CVSS 7.5): CWE-204: Observable Response Discrepancy
CVE-2025-3092 — High (CVSS 7.5): An unauthenticated remote attacker can enumerate valid user names from an unprotected endpoint.

Browse all CWE-204 vulnerabilities →