CVE-2026-3579 (GCVE-0-2026-3579)
Vulnerability from cvelistv5 – Published: 2026-03-19 19:37 – Updated: 2026-03-24 01:36
VLAI
EPSS
VEX
Title
Non-constant time multiplication subroutine __muldi3 on RISC-V RV32I
Summary
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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 01:36 UTC
CWE
- CWE-203 - Observable Discrepancy
Assigner
wolfSSL
CNA
References
1 reference
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