CVE-2022-31223

Name: CVE-2022-31223
Creator: NVD / NIST
Published: 2022-09-12T19:15:09.177+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.3/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2022-31223 is a low-severity vulnerability rated 2.3/10 on the CVSS scale. Dell BIOS versions contain an Improper Neutralization of Null Byte vulnerability. A local authenticated administrator user could potentially exploit this vulnerability by sending unexpected null bytes in order to read memory on the system.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

Dell BIOS versions contain an Improper Neutralization of Null Byte vulnerability. A local authenticated administrator user could potentially exploit this vulnerability by sending unexpected null bytes in order to read memory on the system.

Metrics

CVSS 3.1

2.3/10

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

EPSS Probability

0.18%

7.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-158

Affected Software

Vendor	Product	Versions
Dell	Chengming 3900 Firmware	< 1.1.66
Dell	Inspiron 14 Plus 7420 Firmware	< 1.2.0
Dell	Inspiron 16 Plus 7620 Firmware	< 1.2.0
Dell	Inspiron 3910 Firmware	< 1.1.66
Dell	Inspiron 5320 Firmware	< 1.1.0
Dell	Inspiron 5420 Firmware	< 1.4.1
Dell	Inspiron 5620 Firmware	< 1.4.1
Dell	Inspiron 7420 Firmware	< 1.3.0
Dell	Inspiron 7620 Firmware	< 1.3.0
Dell	Optiplex 3000 Firmware	< 1.1.66
Dell	Optiplex 3000 Thin Client Firmware	< 1.0.7
Dell	Optiplex 5000 Firmware	< 1.3.62
Dell	Optiplex 5400 Firmware	< 1.0.13
Dell	Optiplex 7000 Firmware	< 1.3.62
Dell	Optiplex 7000 Oem Firmware	< 1.3.62
Dell	Optiplex 7400 Firmware	< 1.0.13
Dell	Precision 3460 Small Form Factor Firmware	< 1.3.62
Dell	Precision 3660 Tower Firmware	< 1.3.71
Dell	Precision 5770 Firmware	< 1.6.0
Dell	Vostro 3710 Firmware	< 1.1.66
Dell	Vostro 3910 Firmware	< 1.1.66
Dell	Vostro 5320 Firmware	< 1.1.0
Dell	Vostro 5620 Firmware	< 1.4.1
Dell	Vostro 7620 Firmware	< 1.2.0
Dell	Xps 17 9720 Firmware	< 1.6.0

References

https://www.dell.com/support/kbdoc/000202196Patch, Vendor Advisory
https://www.dell.com/support/kbdoc/000202196Patch, Vendor Advisory

Timeline

Published: Sep 12, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-31223?

How severe is CVE-2022-31223?

CVE-2022-31223 has a CVSS score of 2.3/10 (LOW severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2022-31223?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-31223?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST