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Fencer Vulns
high 7.5

CVE-2022-34418 json

Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability.

published 2023-03-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-37373

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 6%
public exploits
0
none known

Summary

Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious user with high Privileges may potentially exploit this vulnerability to perform arbitrary code execution or cause denial of service.

Patch / fix

  • dell r6515_firmware 2.9.3
  • dell r7515_firmware 2.9.3
  • dell r6525_firmware 2.9.3
  • dell r7525_firmware 2.9.3
  • dell xe8545_firmware 2.9.4
  • dell r6415_firmware 1.19.0
  • dell r7415_firmware 1.19.0
  • dell r7425_firmware 1.19.0
  • dell r750_firmware 1.8.2
  • dell r750xa_firmware 1.8.2
  • dell r650_firmware 1.8.2
  • dell c6520_firmware 1.8.2
  • dell mx750c_firmware 1.8.2
  • dell r450_firmware 1.8.2
  • dell r550_firmware 1.8.2
  • dell r650xs_firmware 1.8.2
  • dell r750xs_firmware 1.8.2
  • dell t550_firmware 1.8.2
  • dell xr11_firmware 1.8.2
  • dell xr12_firmware 1.8.2

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
20 mo ago

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 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Dell PowerEdge Platform

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.