Dell BIOS contains a race condition vulnerability.

published 2022-09-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-31408

cvss: 6.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 2%
public exploits: 0; none known

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.

Patch / fix

fixed in 20

dell alienware_m15_r6_firmware 1.8.0
dell chengming_3980_firmware 2.21.0
dell chengming_3988_firmware 1.9.0
dell chengming_3990_firmware 1.8.2
dell chengming_3991_firmware 1.8.2
dell g15_5510_firmware 1.8.0
dell g15_5511_firmware 1.9.0
dell g3_15_3590_firmware 1.16.0
dell g3_3500_firmware 1.12.0
dell g3_3579_firmware 1.19.0
dell g5_15_5587_firmware 1.19.0
dell g5_15_5590_firmware 1.18.0
dell g5_5000_firmware 1.5.1
dell g5_5090_firmware 1.12.0
dell g5_5500_firmware 1.12.0
dell g7_7500_firmware 1.12.0
dell g7_7588_firmware 1.19.0
dell g7_17_7700_firmware 1.12.0
dell g7_17_7790_firmware 1.18.0
dell latitude_3480_firmware 1.19.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 16 mo ago (2025-06-11)

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.1	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:N
NVD	3.1	7.0	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Dell CPG BIOS

Classification

Weakness

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

References

dell.com /support/kbdoc/000202194
vendor-advisory

Sources

CVE List CVE-2022-26859
NVD CVE-2022-26859

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Summary