CVE-2025-69277
CVE-2025-69277 is a medium-severity vulnerability with a CVSS 3.x base score of 4.5. 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-184.
Key facts
- Severity: Medium (CVSS 3.x base score 4.5)
- EPSS exploit prediction: 0% (6th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-205876
- Weakness: CWE-184
- Published:
- Last modified:
Description
libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren't in the main cryptographic group.
Frequently asked questions
- What is CVE-2025-69277?
- libsodium before ad3004e, in atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mishandles checks for whether an elliptic curve point is valid because it sometimes allows points that aren't in the main cryptographic group.
- How severe is CVE-2025-69277?
- CVE-2025-69277 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2025-69277 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-69277?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-69277 have an EU (EUVD) identifier?
- Yes. CVE-2025-69277 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205876.
- When was CVE-2025-69277 published?
- CVE-2025-69277 was published on 2025-12-31 and last updated on 2026-06-17.
References
- https://00f.net/2025/12/30/libsodium-vulnerability/
- https://github.com/jedisct1/libsodium/commit/ad3004ec8731730e93fcfbbc824e67eadc1c1bae
- https://github.com/pyca/pynacl/commit/96314884d88d1089ff5f336dba61d7abbcddbbf7
- https://github.com/pyca/pynacl/commit/ecf41f55a3d8f1e10ce89c61c4b4d67f3f4467cf
- https://github.com/pyca/pynacl/issues/920
- https://ianix.com/pub/ed25519-deployment.html
- https://news.ycombinator.com/item?id=46435614
- https://lists.debian.org/debian-lts-announce/2026/01/msg00004.html
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