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Fencer Vulns
high 7.5

CVE-2022-34393 json

Dell BIOS contains an improper input validation vulnerability.

published 2023-01-18 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-37348

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 11%
public exploits
0
none known

Summary

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

Patch / fix

  • dell g5_se_5505_firmware 1.12.1
  • dell inspiron_27_7775_firmware 2.17.0
  • dell inspiron_3180_firmware 1.5.0
  • dell inspiron_3185_firmware 1.5.0
  • dell inspiron_3195_2-in-1_firmware 1.5.0
  • dell inspiron_3275_firmware 1.9.1
  • dell inspiron_3475_firmware 1.9.1
  • dell inspiron_3505_firmware 1.8.0
  • dell inspiron_3515_firmware 1.7.0
  • dell inspiron_3585_firmware 1.9.0
  • dell inspiron_3595_firmware 1.4.0
  • dell inspiron_3785_firmware 1.9.0
  • dell inspiron_5405_firmware 1.8.1
  • dell inspiron_5415_firmware 1.12.0
  • dell inspiron_5485_firmware 2.10.1
  • dell inspiron_5485_2-in-1_firmware 2.10.1
  • dell inspiron_5505_firmware 1.8.1
  • dell inspiron_5515_firmware 1.12.0
  • dell inspiron_5585_firmware 2.10.1
  • dell inspiron_7375_firmware 1.9.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
19 mo ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% 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 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

  • Dell BIOS

Classification

Weakness
  • CWE-20 Improper Input Validation

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.