CVE-2026-43606
Received Received - Intake

Observable Timing Discrepancy in AMD Vitis Libraries ECDSA

Publication date: 2026-08-11

Last updated on: 2026-08-11

Assigner: Advanced Micro Devices Inc.

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.

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Meta Information

Published
2026-08-11
Last Modified
2026-08-11
Generated
2026-08-11
AI Q&A
2026-08-11
EPSS Evaluated
N/A
NVD
CVE-2026-43606
EUVD
EUVD-2026-56555

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
amd vitis_libraries *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-208 Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.

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Executive Summary

This vulnerability involves an observable timing discrepancy in the AMD Vitis Libraries ECDSA secp256k1 component. Attackers with local access could exploit timing differences or electromagnetic emanations to potentially extract private cryptographic keys, leading to high confidentiality and integrity impacts.

Impact Analysis

If exploited, this vulnerability could allow attackers to steal private cryptographic keys, compromising secure communications or transactions. This may lead to unauthorized access to sensitive data, financial loss, or identity theft, depending on how the affected component is used in your systems.

Compliance Impact

This vulnerability could lead to breaches of confidentiality and integrity, violating requirements under GDPR (data protection) and HIPAA (health information security). Non-compliance may result in legal penalties, fines, or reputational damage due to unauthorized exposure of sensitive data.

Mitigation Strategies

Update AMD Vitis Libraries to the latest version to address the timing discrepancy in the ECDSA secp256k1 component. Avoid using affected versions for cryptographic operations.

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