CVEvulnerability

CVE-2025-52473

5.5 MEDIUM Published 2025-07-10 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-07-10
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-200

Description

liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. Multiple secret-dependent branches have been identified in the reference implementation of the HQC key encapsulation mechanism when it is compiled with Clang for optimization levels above -O0 (-O1, -O2, etc). A proof-of-concept local attack exploits this secret-dependent information to recover the entire secret key. This vulnerability is fixed in 0.14.0.

Affected configurations

• openquantumsafe liboqs (< 0.14.0)

Related

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References