CVEvulnerability

CVE-2026-3580

2.1 LOW Published 2026-03-19 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-19
Last modified
2026-06-17
Assigner
[email protected]
CVSS 4.0 ([email protected])
2.1 LOW — CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-203

Description

In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret keys via timing analysis.

Affected configurations

• wolfssl wolfssl 5.8.4

Related

Weakness · CWE (1)

  • CWE-203 Observable Discrepancy weakness

References