CVE-2026-43606

Timing Side-Channel Exposure in AMD Vitis ECDSA Secp256k1 Module

Published Aug 11, 2026 CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed
Description
Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow attackers with local access to potentially perform timing analysis or electromagnetic emanation attacks, resulting in high confidentiality and integrity impact due to the exposure of private cryptographic keys.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Amd
Amd vitis Libraries
Amd vitis Unified Installer
Vendors & Products Amd
Amd vitis Libraries
Amd vitis Unified Installer
Type Values Removed Values Added
Title Timing Side-Channel Exposure in AMD Vitis ECDSA Secp256k1 Module
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Observable Timing Discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component could allow attackers with local access to potentially perform timing analysis or electromagnetic emanation attacks, resulting in high confidentiality and integrity impact due to the exposure of private cryptographic keys.
Weaknesses CWE-208
References
Metrics cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMD
Published
Updated
Aug 12, 2026, 1:05 PM
Reserved
May 1, 2026, 6:15 PM
Status
Awaiting Analysis
Published
Aug 11, 2026, 5:17 PM
Modified
Aug 12, 2026, 8:50 PM