CVE-2026-3579 Non-constant time multiplication subroutine __muldi3 on RISC-V RV32I

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 sp256mul9, sp256sqr9, etc., leading to a timing...

CVE-2026-3579

Summary: CVE-2026-3579 affects wolfSSL 5.8.4 on RISC-V RV32I. The issue is a lack of a constant-time software implementation for 64-bit multiplication; the compiler-inserted __muldi3 subroutine runs in variable time depending on operand values, creating a timing side-channel for several SP math f...