CVE-2022-34393

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-20

Description

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.

Affected products

Dell G5 Se 5505 Firmware: before 1.12.1 — fixed in 1.12.1
Dell Inspiron 27 7775 Firmware: before 2.17.0 — fixed in 2.17.0
Dell Inspiron 3180 Firmware: before 1.5.0 — fixed in 1.5.0
Dell Inspiron 3185 Firmware: before 1.5.0 — fixed in 1.5.0
Dell Inspiron 3195 2-In-1 Firmware: before 1.5.0 — fixed in 1.5.0
Dell Inspiron 3275 Firmware: before 1.9.1 — fixed in 1.9.1
Dell Inspiron 3475 Firmware: before 1.9.1 — fixed in 1.9.1
Dell Inspiron 3505 Firmware: before 1.8.0 — fixed in 1.8.0
Dell Inspiron 3515 Firmware: before 1.7.0 — fixed in 1.7.0
Dell Inspiron 3585 Firmware: before 1.9.0 — fixed in 1.9.0
Dell Inspiron 3595 Firmware: before 1.4.0 — fixed in 1.4.0
Dell Inspiron 3785 Firmware: before 1.9.0 — fixed in 1.9.0
Dell Inspiron 5405 Firmware: before 1.8.1 — fixed in 1.8.1
Dell Inspiron 5415 Firmware: before 1.12.0 — fixed in 1.12.0
Dell Inspiron 5485 2-In-1 Firmware: before 2.10.1 — fixed in 2.10.1
Dell Inspiron 5485 Firmware: before 2.10.1 — fixed in 2.10.1
Dell Inspiron 5505 Firmware: before 1.8.1 — fixed in 1.8.1
Dell Inspiron 5515 Firmware: before 1.12.0 — fixed in 1.12.0
Dell Inspiron 5585 Firmware: before 2.10.1 — fixed in 2.10.1
Dell Inspiron 7375 Firmware: before 1.9.0 — fixed in 1.9.0
Dell Inspiron 7405 2-In-1 Firmware: before 1.9.1 — fixed in 1.9.1
Dell Inspiron 7415 Firmware: before 1.12.0 — fixed in 1.12.0
Dell Vostro 3405 Firmware: before 1.8.0 — fixed in 1.8.0
Dell Vostro 3515 Firmware: before 1.7.0 — fixed in 1.7.0
Dell Vostro 5415 Firmware: before 1.12.0 — fixed in 1.12.0
Dell Vostro 5515 Firmware: before 1.12.0 — fixed in 1.12.0

How to fix

Upgrade to a fixed version: 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. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2022-34393 or the next vulnerability affects your stack