CVE-2026-3579
MEDIUM
wolfssl
NVD
CVSS Score
5.9
Severity
MEDIUM
Published
Mar 19, 2026
Vendor
wolfssl
Description
wolfSSL 5.8.4 on RISC-V RV32I architectures lacks a constant-time software implementation for 64-bit multiplication. The compiler-inserted __muldi3 subroutine executes in variable time based on operand values. This affects multiple SP math functions (sp_256_mul_9, sp_256_sqr_9, etc.), leading to a timing side-channel that may expose sensitive cryptographic data.