CVE-2022-34398

HIGH

Dell Alienware BIOS < 1.22.2 - Authenticated Arbitrary Code Execution via TOCTOU Race Condition

Title source: llm
STIX 2.1

Description

Dell BIOS contains a Time-of-check Time-of-use vulnerability. A local authenticated malicious user could\u00a0potentially exploit this vulnerability by using a specifically timed DMA transaction during an SMI to gain arbitrary code execution on the system.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory
https://www.dell.com/support/kbdoc/000206038

Scores

CVSS v3 7.5
EPSS 0.0004
EPSS Percentile 13.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-367
Status published
Products (50)
dell/alienware_area_51m_r1_firmware < 1.22.2
dell/alienware_area_51m_r2_firmware < 1.19.0
dell/alienware_aurora_r10_firmware < 2.3.2
dell/alienware_aurora_r11_firmware < 1.0.17
dell/alienware_aurora_r12_firmware < 1.1.17
dell/alienware_aurora_r13_firmware < 1.7.0
dell/alienware_aurora_r8_firmware < 1.0.26
dell/alienware_aurora_r9_firmware < 1.0.22
dell/alienware_m15_r1_firmware < 2.15.0
dell/alienware_m15_r2_firmware < 1.18.3
... and 40 more
Published Feb 01, 2023
Tracked Since Feb 18, 2026