CVE-2021-26343
5.5 · MEDIUMOverview
CVE-2021-26343 is a medium-severity vulnerability affecting amd epyc_7003_firmware. It was published on January 11, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Insufficient validation in ASP BIOS and DRTM commands may allow malicious supervisor x86 software to disclose the contents of sensitive memory which may result in information disclosure.
Remediation
Check the references section for vendor advisories and patches from amd. Update epyc_7003_firmware to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| amd | epyc_7003_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
| amd | epyc_72f3_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
| amd | epyc_7313_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
| amd | epyc_7313p_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
| amd | epyc_7343_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
| amd | epyc_7373x_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
| amd | epyc_73f3_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
| amd | epyc_7413_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
| amd | epyc_7443_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
| amd | epyc_7443p_firmware | >= 0, < milanpi_1.0.0.3 | Affected |
Frequently Asked Questions
What is CVE-2021-26343?
CVE-2021-26343 is a medium-severity vulnerability affecting amd epyc_7003_firmware. It was published on January 11, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2021-26343?
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-26343?
Check the references section for vendor advisories and patches from amd. Update epyc_7003_firmware to the latest patched version. 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-2021-26343?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-26343 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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