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CVE-2026-3579
Published: Mar 19, 2026
Modified: Mar 24, 2026
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
wolfSSL | wolfSSL | affected 0 - < 5.9.0 |
Weaknesses (CWE)
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