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Status published
Low
CVE-2023-20540
An observable timing discrepancy in the ASP could allow a...
Vulnerability Description
An observable timing discrepancy in the ASP could allow a privileged attacker to perform a brute-force attack against the hash message authentication code, allowing arbitrary message input, potentially leading to a loss of data integrity.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Affected Software
AMD Ryzen™ 3000 Series Desktop Processors, AMD Ryzen™ 5000 Series Desktop Processors, AMD Ryzen™ Threadripper™ 3000 Series Processors, AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors, AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors
Vulnerable Versions:
ComboAM4 1.0.0.E, ComboAM4v2PI 1.2.0.CA, CastlePeakPI-SP3r3 1.0.0.C, CastlePeakWSPI-sWRX8 1.0.0.E, ChagallWSPI-sWRX8 1.0.0.9
Timeline
Official Publish:
June 26th, 2026
Last Modified:
June 26th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.