EUVD-2026-13170
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
4Description
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.
Analysis
CVE-2026-3579 is a security vulnerability (CVSS 5.9). Remediation should follow standard vulnerability management procedures.
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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Priority Score
Vendor Status
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 4.6.0+p1-0+deb11u2 | - |
| bookworm | vulnerable | 5.5.4-2+deb12u2 | - |
| trixie | vulnerable | 5.7.2-0.1+deb13u1 | - |
| forky, sid | vulnerable | 5.8.4-1 | - |
| (unstable) | fixed | (unfixed) | - |
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External POC / Exploit Code
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