CVE-2026-3580

MEDIUM

4.7

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung4.7

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

AngriffsvektorLOCAL

KomplexitatHIGH

Erforderliche PrivilegienLOW

BenutzerinteraktionNONE

Veroffentlicht3/19/2026

Zuletzt geandert3/23/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

wolfssl:wolfssl

Schwachen (CWE)

CWE-203

Referenzen

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

IOC Korrelationen

Keine Korrelationen erfasst

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