CVE-2026-3580

No fix known EPSS <1%CVSS 2.1

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.

Published 2026-03-19 · CVE record · OSV

Products: wolfssl

Distro releases