CVE-2022-31223
Dell BIOS versions contain an Improper Neutralization of Null Byte vulnerability. A local...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2022-31223- CVSS 3.1
- 2.3 Low
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-158
- Updated
- 2026-11-02
EUVDEUVD-2022-52807
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.
- Record
EUVD-2022-52807- CVSS 3.1
- 2.3 Low
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2qf2-mq6q-w69h
Dell BIOS versions contain an Improper Neutralization of Null Byte vulnerability. A local...
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.
- Record
GHSA-2qf2-mq6q-w69h- CVSS 3.1
- 2.3 Low
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
NVD
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.
- Record
CVE-2022-31223- CVSS 3.1
- 2.3 Low
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-158
- Updated
- 2026-11-02
Affected products
- dell chengming 3900 firmware
- dell cpg bios
- dell inspiron 14 plus 7420 firmware
- dell inspiron 16 plus 7620 firmware
- dell inspiron 3910 firmware
- dell inspiron 5320 firmware
- dell inspiron 5420 firmware
- dell inspiron 5620 firmware
- dell inspiron 7420 firmware
- dell inspiron 7620 firmware
- dell optiplex 3000 firmware
- dell optiplex 3000 thin client firmware
Show 14 moreShow less
- dell optiplex 5000 firmware
- dell optiplex 5400 firmware
- dell optiplex 7000 firmware
- dell optiplex 7000 oem firmware
- dell optiplex 7400 firmware
- dell precision 3460 small form factor firmware
- dell precision 3660 tower firmware
- dell precision 5770 firmware
- dell vostro 3710 firmware
- dell vostro 3910 firmware
- dell vostro 5320 firmware
- dell vostro 5620 firmware
- dell vostro 7620 firmware
- dell xps 17 9720 firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-31223 is a low vulnerability (CVSS 2.3) in Dell Chengming 3900 Firmware, published September 12, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. No source names a fixed version.