CVE-2022-40261

HIGH

Intel Nuc M15 Laptop Kit Lapbc510 Firmware - Buffer Overflow

Title source: rule

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

References (2)

Core 2

Core References

Vendor Advisory x_refsource_misc

https://www.ami.com/security-center/

Exploit, Third Party Advisory x_refsource_misc

https://www.binarly.io/advisories/BRLY-2022-003

Scores

CVSS v3 8.2

EPSS 0.0013

EPSS Percentile 32.2%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-120

Status published

Products (3)

ami/aptio_v 5.0

intel/nuc_m15_laptop_kit_lapbc510_firmware

intel/nuc_m15_laptop_kit_lapbc710_firmware

Published Sep 20, 2022

Tracked Since Feb 18, 2026