← Vulnerability feed

Vulnerability record · CVE-2022-40261 · published 20 September 2022

CVE-2022-40261: Intel nuc m15 laptop kit lapbc510 firmware classic 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: OverClockSmiHandler SHA256: a204699576e1a48ce915d9d9423380c8e4c197003baf9d17e6504f0265f3039c Module GUID: 4698C2BD-A903-410E-AD1F-5EEF3A1AE422

8.2 CVSS 3.1 High EPSS 0.36% · top 73.2% CWE-120 · Classic buffer overflow
8.2CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
4References, 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: OverClockSmiHandler SHA256: a204699576e1a48ce915d9d9423380c8e4c197003baf9d17e6504f0265f3039c Module GUID: 4698C2BD-A903-410E-AD1F-5EEF3A1AE422

CVSS:3.1/AV:L/AC:L/PR:H/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-2022-003 ExploitThird Party Advisory
https://www.ami.com/security-center/ Vendor Advisory
https://www.binarly.io/advisories/BRLY-2022-003 ExploitThird Party Advisory

Track CVE-2022-40261 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

8.8CVE-2024-42442Ami aptio v memory buffer overflow vulnerabilityAPTIOV contains a vulnerability in the BIOS where a user or attacker may cause an improper restriction of operations within the bounds of a memory bu…EPSS 0.81%8.8CVE-2022-40250Intel nuc m15 laptop kit lapbc510 firmware stack-based buffer overflow vulnerabilityAn attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in System Management Mode - an enviro…EPSS 0.50%8.2CVE-2022-26873Intel nuc m15 laptop kit lapbc510 firmware stack-based buffer overflow vulnerabilityA 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 mitiga…EPSS 0.42%8.2CVE-2022-40262Ami aptio v out-of-bounds write vulnerabilityA 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 mitiga…EPSS 0.33%7.8CVE-2024-42444Ami aptio v toctou race condition vulnerabilityAPTIOV contains a vulnerability in BIOS where an attacker may cause a TOCTOU Race Condition by local means. Successful exploitation of this vulnerabi…EPSS 0.12%7.8CVE-2024-33656Ami aptio v improper privilege management vulnerabilityThe DXE module SmmComputrace contains a vulnerability that allows local attackers to leak stack or global memory. This could lead to privilege escala…EPSS 0.16%7.8CVE-2024-33657Ami aptio v improper input validation vulnerabilityThis SMM vulnerability affects certain modules, allowing privileged attackers to execute arbitrary code, manipulate stack memory, and leak informatio…EPSS 0.19%7.8CVE-2023-39538Ami aptio v improper input validation vulnerabilityAMI AptioV contains a vulnerability in BIOS where a User may cause an unrestricted upload of a BMP Logo file with dangerous type by Local access. A s…EPSS 0.22%

Source: NIST National Vulnerability Database (record CVE-2022-40261), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.