CVE-2026-10512

Description

The X25519 x86_64 assembly implementation fails to clear the most significant bit during the final modular reduction, so the computed result may not be fully reduced modulo the field prime 2^255 - 19. This can leave the field element in a non-canonical form, producing an incorrect result from the scalar multiplication and potentially a wrong shared secret. The final carry-propagation chains in the x64 and AVX2 reduction routines could overflow into the top bit, and the high limb was not masked afterward, so the 255-bit field element was left non-canonical.

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Produits concernés

• wolfSSL
• Wolfssl wolfssl

Scores CVSS

Faiblesses (CWE)

• CWE-682

Références

• https://github.com/wolfSSL/wolfssl/pull/10536 Issue TrackingPatch
• https://www.wolfssl.com/docs/security-vulnerabilities/ Vendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories