CVE-2022-22558

Severity: medium (CVSS 6.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-04-21 · updated 2026-06-17
Weakness: CWE-119

Description

Dell PowerEdge Server BIOS and Dell Precision Workstation 7910 and 7920 Rack BIOS contain an Improper SMM communication buffer verification vulnerability. A Local High Privileged attacker could potentially exploit this vulnerability leading to arbitrary writes or denial of service.

Affected products

Dell C4130 Firmware: before 2.14.0 — fixed in 2.14.0
Dell C6320 Firmware: before 2.14.1 — fixed in 2.14.1
Dell Fc430 Firmware: before 2.14.0 — fixed in 2.14.0
Dell Fc630 Firmware: before 2.14.0 — fixed in 2.14.0
Dell Fc830 Firmware: before 2.14.0 — fixed in 2.14.0
Dell M630 Firmware: before 2.14.0 — fixed in 2.14.0
Dell M630P Firmware: before 2.14.0 — fixed in 2.14.0
Dell M830 Firmware: before 2.14.0 — fixed in 2.14.0
Dell M830P Firmware: before 2.14.0 — fixed in 2.14.0
Dell R430 Firmware: before 2.14.0 — fixed in 2.14.0
Dell R530 Firmware: before 2.14.0 — fixed in 2.14.0
Dell R630 Firmware: before 2.14.0 — fixed in 2.14.0
Dell R6415 Firmware: before 1.18.0 — fixed in 1.18.0
Dell R730 Firmware: before 2.14.0 — fixed in 2.14.0
Dell R730Xd Firmware: before 2.14.0 — fixed in 2.14.0
Dell R7415 Firmware: before 1.18.0 — fixed in 1.18.0
Dell R7425 Firmware: before 1.18.0 — fixed in 1.18.0
Dell R830 Firmware: before 1.14.0 — fixed in 1.14.0
Dell T430 Firmware: before 2.14.0 — fixed in 2.14.0
Dell T630 Firmware: before 2.14.0 — fixed in 2.14.0

How to fix

Upgrade to a fixed version: Dell C4130 Firmware 2.14.0; Dell C6320 Firmware 2.14.1; Dell Fc430 Firmware 2.14.0; Dell Fc630 Firmware 2.14.0; Dell Fc830 Firmware 2.14.0; Dell M630 Firmware 2.14.0; Dell M630P Firmware 2.14.0; Dell M830 Firmware 2.14.0; Dell M830P Firmware 2.14.0; Dell R430 Firmware 2.14.0; Dell R530 Firmware 2.14.0; Dell R630 Firmware 2.14.0. Check the vendor advisory for mitigations.

References

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