EUVD-2026-13172
2026-03-19
wolfSSL
4.7
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Lifecycle Timeline
4
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
EUVD ID Assigned
Mar 19, 2026 - 20:00 euvd
EUVD-2026-13172
Analysis Generated
Mar 19, 2026 - 20:00 vuln.today
CVE Published
Mar 19, 2026 - 19:46 nvd
MEDIUM 4.7
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.
Analysis
CVE-2026-3580 is a security vulnerability (CVSS 4.7). 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
24
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +24
POC: 0
Vendor Status
Debian
wolfssl
| 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
Leaving vuln.today
Destination URL
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