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Fencer Vulns
high 7.5

CVE-2022-26860 json

Dell BIOS versions contain a stack-based buffer overflow vulnerability.

published 2022-09-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-31409

cvss
7.5
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 9%
public exploits
0
none known

Summary

Dell BIOS versions contain a stack-based buffer overflow vulnerability. A local attacker could exploit this vulnerability by sending malicious input via SMI to bypass security checks resulting in arbitrary code execution in SMM.

Patch / fix

  • 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
total
Assessed
16 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
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

References

Sources

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.