CVE-2026-3580

MEDIUM

4.7

Description

In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret keys via timing analysis.

Details CVE

Score CVSS v3.14.7

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Vecteur d'attaqueLOCAL

ComplexiteHIGH

Privileges requisLOW

Interaction utilisateurNONE

Publie3/19/2026

Derniere modification3/23/2026

Sourcenvd

Observations honeypot0

Produits affectes

wolfssl:wolfssl

Faiblesses (CWE)

CWE-203

References

https://github.com/wolfSSL/wolfssl/pull/9855(facts@wolfssl.com)

Correlations IOC

Aucune correlation enregistree

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