Dell BIOS versions contain an Improper Authentication vulnerability.

published 2022-09-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-31407

cvss: 6.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits: 0; none known

Dell BIOS versions contain an Improper Authentication vulnerability. A locally authenticated malicious user could potentially exploit this vulnerability by sending malicious input to an SMI in order to bypass security controls.

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

0.17% chance of exploitation in the next 30 days, higher than 6% 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:H/I:L/A:N
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Dell CPG BIOS

Classification

Weakness

CWE-287 Improper Authentication

References

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

Sources

CVE List CVE-2022-26858
NVD CVE-2022-26858

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary