VulnerabilityModified
CVE-2021-46792
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…
MEDIUM 5.9EPSS 0.40%
Does this matter?
Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.40% probability · 33th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-367
- Affected
- amd/ryzen 5300g firmware · amd/ryzen 5300ge firmware · amd/ryzen 5500 firmware · amd/ryzen 5600 firmware · amd/ryzen 5600g firmware · amd/ryzen 5600ge firmware · amd/ryzen 5600x firmware · amd/ryzen 5700g firmware · amd/ryzen 5700ge firmware · amd/ryzen 5700x firmware · amd/ryzen 5800 firmware · amd/ryzen 5800x3d firmware · amd/ryzen 5800x firmware · amd/ryzen 5900 firmware · amd/ryzen 5900x firmware · amd/ryzen 5945wx firmware · amd/ryzen 5950x firmware · amd/ryzen 5955wx firmware · amd/ryzen 5965wx firmware · amd/ryzen 5975wx firmware · +35 more
- Source
- psirt@amd.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.