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Status published
Unknown
CVE-2021-26316
Failure to validate the communication buffer and communication service in...
Vulnerability Description
Failure to validate the communication buffer and communication service in the BIOS may allow an attacker to tamper with the buffer resulting in potential SMM (System Management Mode) arbitrary code execution.
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 5000 Series , Ryzen 2000 Series, Ryzen 3000 Series, 1st Gen EPYC , 2nd Gen EPYC, 3rd Gen EPYC
Vulnerable Versions:
various , Various
Timeline
Official Publish:
January 10th, 2023
Last Modified:
April 9th, 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.