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Vulnerability record · CVE-2022-40250 · published 20 September 2022

CVE-2022-40250: Intel nuc m15 laptop kit lapbc510 firmware stack-based buffer overflow vulnerability

Intel · Nuc M15 Laptop Kit Lapbc510 Firmware

An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in System Management Mode - an environment more privileged than operating system (OS) and completely isolated from it. Running arbitrary code in SMM additionally bypasses SMM-based SPI flash protections against modifications, which can help an attacker to install a firmware backdoor/implant into BIOS. Such a malicious firmware code in BIOS could persist across operating system re-installs. Additionally, this vulnerability potentially could be used by malicious actors to bypass security mechanisms provided by UEFI firmware (for example, Secure Boot and some types of memory isolation for hypervisors). This issue affects: Module name: SmmSmbiosElog SHA256: 3a8acb4f9bddccb19ec3b22b22ad97963711550f76b27b606461cd5073a93b59 Module GUID: 8e61fd6b-7a8b-404f-b83f-aa90a47cabdf This issue affects: AMI Aptio 5.x. This issue affects: AMI Aptio 5.x.

8.8 CVSS 3.1 High EPSS 0.50% · top 59.8% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score
0.50%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in System Management Mode - an environment more privileged than operating system (OS) and completely isolated from it. Running arbitrary code in SMM additionally bypasses SMM-based SPI flash protections against modifications, which can help an attacker to install a firmware backdoor/implant into BIOS. Such a malicious firmware code in BIOS could persist across operating system re-installs. Additionally, this vulnerability potentially could be used by malicious actors to bypass security mechanisms provided by UEFI firmware (for example, Secure Boot and some types of memory isolation for hypervisors). This issue affects: Module name: SmmSmbiosElog SHA256: 3a8acb4f9bddccb19ec3b22b22ad97963711550f76b27b606461cd5073a93b59 Module GUID: 8e61fd6b-7a8b-404f-b83f-aa90a47cabdf This issue affects: AMI Aptio 5.x. This issue affects: AMI Aptio 5.x.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.ami.com/security-center/ Vendor Advisory
https://www.binarly.io/advisories/BRLY-2022-016 ExploitThird Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html Not ApplicableThird Party Advisory
https://www.ami.com/security-center/ Vendor Advisory
https://www.binarly.io/advisories/BRLY-2022-016 ExploitThird Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html Not ApplicableThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-40250), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.