CVE-2022-26873

Name: CVE-2022-26873
Creator: NVD / NIST
Published: 2022-09-20T18:15:10.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2022-26873 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.2/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.39%

30.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Intel	Nuc M15 Laptop Kit Lapbc510 Firmware	All versions
Intel	Nuc M15 Laptop Kit Lapbc710 Firmware	All versions
Ami	Aptio V	5.0

References

https://www.ami.com/security-center/Vendor Advisory
https://www.binarly.io/advisories/BRLY-2022-027Exploit, Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.htmlNot Applicable, Third Party Advisory
https://www.ami.com/security-center/Vendor Advisory
https://www.binarly.io/advisories/BRLY-2022-027Exploit, Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.htmlNot Applicable, Third Party Advisory

Timeline

Published: Sep 20, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-26873?

How severe is CVE-2022-26873?

CVE-2022-26873 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2022-26873?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-26873?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST