CVE-2022-34398CWE-367

Dell BIOS contains a Time-of-check Time-of-use vulnerability

High · published February 1, 2023

CVSS v3.1
7.5
EPSS
0%
Percentile
4.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00160 · 4.7th percentile
Weakness
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition
Published
2023-02-01T05:28Z
EPSS history
Timeline
  • 01 FEB 05:28Z
    Dell BIOS contains a Time-of-check Time-of-use vulnerability
    cvelistv5