CVE-2024-51996
CVE-2024-51996 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-287.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-3234
- Weakness: CWE-287
- Published:
- Last modified:
Description
Symphony process is a module for the Symphony PHP framework which executes commands in sub-processes. When consuming a persisted remember-me cookie, Symfony does not check if the username persisted in the database matches the username attached with the cookie, leading to authentication bypass. This vulnerability is fixed in 5.4.47, 6.4.15, and 7.1.8.
Frequently asked questions
- What is CVE-2024-51996?
- Symphony process is a module for the Symphony PHP framework which executes commands in sub-processes. When consuming a persisted remember-me cookie, Symfony does not check if the username persisted in the database matches the username attached with the cookie, leading to authentication bypass. This vulnerability is fixed in 5.4.47, 6.4.15, and 7.1.8.
- How severe is CVE-2024-51996?
- CVE-2024-51996 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2024-51996 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2024-51996?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2024-51996 have an EU (EUVD) identifier?
- Yes. CVE-2024-51996 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-3234.
- When was CVE-2024-51996 published?
- CVE-2024-51996 was published on 2024-11-13 and last updated on 2026-06-17.
References
- https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a
- https://github.com/symfony/symfony/security/advisories/GHSA-cg23-qf8f-62rr
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