CVE Alert: CVE-2025-52473

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Vulnerability Summary: CVE-2025-52473

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 Endpoints:

No affected endpoints listed.

Published Date:

7/10/2025, 7:15:25 PM

⚠️ CVSS Score:

CVSS v3 Score: 5.9 (Medium)

Exploit Status:

Not Exploited

References:

Recommended Action:

No proposed action available. Please refer to vendor documentation for updates.


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