CVE-2022-31226

Dell BIOS versions contain a Stack-based Buffer Overflow vulnerability. A local authenticated malicious user could potentially exploit this vulnerability by sending excess data to a function in order to gain arbitrary code execution on the system.

Published: 2022-09-12 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-31226 is rated Low Risk (31.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.20%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-31226

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.06% 0.20% +0.14%
2 2025-09-16 0.24% 0.06% -0.18%
3 2025-09-13 — 0.24% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-31226

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.2 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2022-31226

Affected software / configurations for CVE-2022-31226

Vendor Product Version Raw CPE
dell chengming_3900_firmware < 1.1.66 cpe:2.3:o:dell:chengming_3900_firmware:*:*:*:*:*:*:*:*
dell inspiron_14_plus_7420_firmware < 1.2.0 cpe:2.3:o:dell:inspiron_14_plus_7420_firmware:*:*:*:*:*:*:*:*
dell inspiron_16_plus_7620_firmware < 1.2.0 cpe:2.3:o:dell:inspiron_16_plus_7620_firmware:*:*:*:*:*:*:*:*
dell inspiron_3910_firmware < 1.1.66 cpe:2.3:o:dell:inspiron_3910_firmware:*:*:*:*:*:*:*:*
dell inspiron_5320_firmware < 1.1.0 cpe:2.3:o:dell:inspiron_5320_firmware:*:*:*:*:*:*:*:*
dell inspiron_5420_firmware < 1.4.1 cpe:2.3:o:dell:inspiron_5420_firmware:*:*:*:*:*:*:*:*
dell inspiron_5620_firmware < 1.4.1 cpe:2.3:o:dell:inspiron_5620_firmware:*:*:*:*:*:*:*:*
dell inspiron_7420_firmware < 1.3.0 cpe:2.3:o:dell:inspiron_7420_firmware:*:*:*:*:*:*:*:*
dell inspiron_7620_firmware < 1.3.0 cpe:2.3:o:dell:inspiron_7620_firmware:*:*:*:*:*:*:*:*
dell optiplex_3000_firmware < 1.1.66 cpe:2.3:o:dell:optiplex_3000_firmware:*:*:*:*:*:*:*:*
dell optiplex_3000_thin_client_firmware < 1.0.7 cpe:2.3:o:dell:optiplex_3000_thin_client_firmware:*:*:*:*:*:*:*:*
dell optiplex_5000_firmware < 1.3.62 cpe:2.3:o:dell:optiplex_5000_firmware:*:*:*:*:*:*:*:*
dell optiplex_5400_firmware < 1.0.13 cpe:2.3:o:dell:optiplex_5400_firmware:*:*:*:*:*:*:*:*
dell optiplex_7000_firmware < 1.3.62 cpe:2.3:o:dell:optiplex_7000_firmware:*:*:*:*:*:*:*:*
dell optiplex_7000_oem_firmware < 1.3.62 cpe:2.3:o:dell:optiplex_7000_oem_firmware:*:*:*:*:*:*:*:*
dell optiplex_7400_firmware < 1.0.13 cpe:2.3:o:dell:optiplex_7400_firmware:*:*:*:*:*:*:*:*
dell precision_3460_small_form_factor_firmware < 1.3.62 cpe:2.3:o:dell:precision_3460_small_form_factor_firmware:*:*:*:*:*:*:*:*
dell precision_3660_tower_firmware < 1.3.71 cpe:2.3:o:dell:precision_3660_tower_firmware:*:*:*:*:*:*:*:*
dell precision_5770_firmware < 1.6.0 cpe:2.3:o:dell:precision_5770_firmware:*:*:*:*:*:*:*:*
dell vostro_3710_firmware < 1.1.66 cpe:2.3:o:dell:vostro_3710_firmware:*:*:*:*:*:*:*:*
dell vostro_3910_firmware < 1.1.66 cpe:2.3:o:dell:vostro_3910_firmware:*:*:*:*:*:*:*:*
dell vostro_5320_firmware < 1.1.0 cpe:2.3:o:dell:vostro_5320_firmware:*:*:*:*:*:*:*:*
dell vostro_5620_firmware < 1.4.1 cpe:2.3:o:dell:vostro_5620_firmware:*:*:*:*:*:*:*:*
dell vostro_7620_firmware < 1.2.0 cpe:2.3:o:dell:vostro_7620_firmware:*:*:*:*:*:*:*:*
dell xps_17_9720_firmware < 1.6.0 cpe:2.3:o:dell:xps_17_9720_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-31226

URL Tags
https://www.dell.com/support/kbdoc/000202196 Patch Vendor Advisory
cvelogic Threat Intelligence