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Status published
Unknown
CVE-2021-46792
Time-of-check Time-of-use (TOCTOU) in the BIOS2PSP command may allow an attacker...
Vulnerability Description
Time-of-check Time-of-use (TOCTOU) in the BIOS2PSP command may allow an attacker with a malicious BIOS to create a race condition causing the ASP bootloader to perform out-of-bounds SRAM reads upon an S3 resume event potentially leading to a denial of service.
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
Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4, Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4, Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP, Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5, Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”, Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir” , Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”, Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”
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.