CVE-2022-34401

Severity: high (CVSS 7.5 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: 2023-01-18 · updated 2026-06-17
Weakness: CWE-121

Description

Dell BIOS contains a stack based buffer overflow vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to send larger than expected input to a parameter in order to gain arbitrary code execution in SMRAM.

Affected products

Dell Alienware M15 A6 Firmware: before 1.4.3 — fixed in 1.4.3
Dell Alienware M17 R5 Firmware: before 1.4.3 — fixed in 1.4.3
Dell G15 5525 Firmware: before 1.4.3 — fixed in 1.4.3

How to fix

Upgrade to a fixed version: Dell Alienware M15 A6 Firmware 1.4.3; Dell Alienware M17 R5 Firmware 1.4.3; Dell G15 5525 Firmware 1.4.3. Check the vendor advisory for mitigations.

References

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