CVE-2022-40261

Katalog CVE

CVSS 8.2 · High EPSS 0,36%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada intel nuc m15 laptop kit lapbc510 firmware, intel nuc m15 laptop kit lapbc710 firmware +1 lainnya. Skor CVSS 3.1 8.2 (High) menurut NVD.

Deskripsi (NVD)

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

Rincian

Terbit di NVD

20 September 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.2 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

EPSS (30 hari)

0,36% peluang dieksploitasi; lebih tinggi dari 27,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.ami.com/security-center/ advisory vendor
• https://www.binarly.io/advisories/BRLY-2022-003 exploit · advisory pihak ketiga