CVE-2026-3579
Medium · 5.9CVSS
5.9
EPSS
0.3%
Published
Mar 19, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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