CVE-2021-46795

low-risk
Published 2023-01-11

A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (3)

Comboam4V2 Pi Firmware
Renoirpi-Fp6 Firmware
Cezannepi-Fp6 Firmware

Affected Vendors

Amd

References (2)

Vendor Advisory https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031
Vendor Advisory https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031
21
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 9/34 · Low