CVE-2022-40261 is a high-severity privilege escalation vulnerability (CVSS 8.2) affecting AMI Aptio V and Intel NUC M15 Laptop Kit firmware. An attacker can exploit a buffer overflow in the OverClockSmiHandler module to elevate privileges from ring 0 to ring -2, enabling arbitrary code execution in System Management Mode (SMM). This allows for the installation of persistent firmware backdoors, bypasses SMM-based SPI flash protections, and can subvert UEFI security mechanisms like Secure Boot. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc510_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc710_firmware:-:*:*:*:*:*:*:* | ||
5.0CPE matchmatch criteria | cpe:2.3:o:ami:aptio_v:5.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.