Vulnerability in Libsodium

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.

EPSS: 0.002 (6.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.5 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-69277?
CVE-2025-69277 is a medium-severity vulnerability in Libsodium, classified under Incomplete List of Disallowed Inputs. CVSS score: 4.5/10. Published 2025-12-31.
How severe is CVE-2025-69277?
Medium severity. CVSS v3 base score is 4.5 out of 10.