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CVE-2021-46792

5.9 · MEDIUM

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…

Published May 9, 2023CWE-367EPSS 0.40%

Overview

CVE-2021-46792 is a medium-severity vulnerability. It was published on May 9, 2023 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001Refwww.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001

How CyberStrike helps

Frequently asked questions

What is CVE-2021-46792?

CVE-2021-46792 is a medium-severity vulnerability. It was published on May 9, 2023 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2021-46792?

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-46792?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-46792?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-46792 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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