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CVE-2022-26873

8.2 · HIGH

A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages.

Published Sep 20, 2022CWE-121EPSS 0.42%

Overview

CVE-2022-26873 is a high-severity vulnerability. It was published on September 20, 2022 and has a CVSS 3.1 base score of 8.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: PlatformInitAdvancedPreMem SHA256: 644044fdb8daea30a7820e0f5f88dbf5cd460af72fbf70418e9d2e47efed8d9b Module GUID: EEEE611D-F78F-4FB9-B868-55907F169280 This issue affects: AMI Aptio 5.x.

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.ami.com/security-center/Refwww.binarly.io/advisories/BRLY-2022-027Refwww.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.htmlRefwww.ami.com/security-center/Refwww.binarly.io/advisories/BRLY-2022-027Refwww.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html

How CyberStrike helps

Frequently asked questions

What is CVE-2022-26873?

CVE-2022-26873 is a high-severity vulnerability. It was published on September 20, 2022 and has a CVSS 3.1 base score of 8.2 (HIGH).

How severe is CVE-2022-26873?

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-26873?

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-2022-26873?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-26873 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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