What is CVE-2022-26859?

CVE-2022-26859 is a medium-severity vulnerability in Dell Alienware M15 R6, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 6.1/10. Published 2022-09-06.

How severe is CVE-2022-26859?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Dell Alienware M15 R6

CVE-2022-26859

Dell BIOS contains a race condition vulnerability. A local attacker could exploit this vulnerability by sending malicious input via SMI in order to bypass security checks during SMM.

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

Published 2022-09-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:N.

EPSS exploit prediction

EPSS: 0.001 (2.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Weakness classification (CWE)

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

References

www.dell.com/support/kbdoc/000202194 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-26859?: CVE-2022-26859 is a medium-severity vulnerability in Dell Alienware M15 R6, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 6.1/10. Published 2022-09-06.
How severe is CVE-2022-26859?: Medium severity. CVSS v3 base score is 6.1 out of 10.