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Status published
Unknown
CVE-2021-26356
A TOCTOU in ASP bootloader may allow an attacker to tamper...
Vulnerability Description
A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data corruption and information disclosure.
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.
References
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Affected Vendor
Affected Software
Ryzen™ 3000 Series Desktop Processors “Matisse” AM4, AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4, 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT, Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS, Ryzen™ Threadripper™ PRO Processors “Chagall” WS, 1st Gen AMD EPYC™ Processors, 2nd Gen AMD EPYC™ Processors, 3rd Gen AMD EPYC™ Processors
Vulnerable Versions:
various , various
Timeline
Official Publish:
May 9th, 2023
Last Modified:
January 28th, 2025
Added to House:
July 21st, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.