CVE-2025-69277

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

31/12/2025

Last modified:

31/12/2025

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&#39;t in the main cryptographic group.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x

4.50

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://00f.net/2025/12/30/libsodium-vulnerability/
https://github.com/jedisct1/libsodium/commit/ad3004ec8731730e93fcfbbc824e67eadc1c1bae
https://ianix.com/pub/ed25519-deployment.html
https://news.ycombinator.com/item?id=46435614