What is CVE-2022-34398?

CVE-2022-34398 is a high-severity vulnerability in Dell Cpg Bios, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.5/10. Published 2023-02-01.

How severe is CVE-2022-34398?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-34398 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Dell Cpg Bios

CVE-2022-34398

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 execut…

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

EPSS: 0.000 (13.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H.

Affected products

Dell Cpg Bios — versions 0

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

www.dell.com/support/kbdoc/000206038 (vendor-advisory)

Frequently asked questions

What is CVE-2022-34398?: CVE-2022-34398 is a high-severity vulnerability in Dell Cpg Bios, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.5/10. Published 2023-02-01.
How severe is CVE-2022-34398?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-34398 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.