How severe is CVE-2022-31220?

CVE-2022-31220 has a CVSS 3.x base score of 3.0, rated low severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2022-31220 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-31220?

CVE-2022-31220 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-2022-31220?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-31220 published?

CVE-2022-31220 was published on 2022-09-12 and last updated on 2026-06-17.

CVE-2022-31220

CVE-2022-31220 is a low-severity vulnerability in Dell Chengming 3900 Firmware with a CVSS 3.x base score of 3.0. 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-252.

Key facts

Severity: Low (CVSS 3.x base score 3.0)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-252
Affected product: Dell Chengming 3900 Firmware
Published: 2022-09-12
Last modified: 2026-06-17

Description

Dell BIOS versions contain an Unchecked Return Value vulnerability. A local authenticated administrator user could potentially exploit this vulnerability in order to change the state of the system or cause unexpected failures.

Frequently asked questions

What is CVE-2022-31220?: Dell BIOS versions contain an Unchecked Return Value vulnerability. A local authenticated administrator user could potentially exploit this vulnerability in order to change the state of the system or cause unexpected failures.
How severe is CVE-2022-31220?: CVE-2022-31220 has a CVSS 3.x base score of 3.0, rated low severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2022-31220 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-31220?: CVE-2022-31220 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-2022-31220?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-31220 published?: CVE-2022-31220 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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