How severe is CVE-2022-31226?

CVE-2022-31226 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2022-31226 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-31226?

CVE-2022-31226 primarily affects Dell Chengming 3900 Firmware. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-31226?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-31226 published?

CVE-2022-31226 was published on 2022-09-12 and last updated on 2026-06-17.

CVE-2022-31226

CVE-2022-31226 is a high-severity vulnerability in Dell Chengming 3900 Firmware with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Dell Chengming 3900 Firmware
Published: 2022-09-12
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2022-31226?: CVE-2022-31226 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2022-31226 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-31226?: CVE-2022-31226 primarily affects Dell Chengming 3900 Firmware. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-31226?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-31226 published?: CVE-2022-31226 was published on 2022-09-12 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/000202196

Affected products (25)

cpe:2.3:o:dell:chengming_3900_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_14_plus_7420_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_16_plus_7620_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3910_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5320_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5420_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5620_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_7420_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_7620_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:optiplex_3000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:optiplex_3000_thin_client_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:optiplex_5000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:optiplex_5400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:optiplex_7000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:optiplex_7000_oem_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:optiplex_7400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:precision_3460_small_form_factor_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:precision_3660_tower_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:precision_5770_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:vostro_3710_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:vostro_3910_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:vostro_5320_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:vostro_5620_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:vostro_7620_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:xps_17_9720_firmware:*:*:*:*:*:*:*:*

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