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

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

https://cvefeed.io/rssfeed/latest.atom / Thu, 03/19/2026 - 23:07
CVE ID :CVE-2026-3579
Published : March 19, 2026, 8:16 p.m. | 45 minutes ago
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.
Severity: 2.1 | LOW
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