CVE-2021-21572

mediumpriority · track · 30EPSS 0.003 · 18 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (18th) EPSS

CVSS 6.9 · medium

Is it mine?

129 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

Dell BIOSConnect feature contains a buffer overflow vulnerability. An authenticated malicious admin user with local access to the system may potentially exploit this vulnerability to run arbitrary code and bypass UEFI restrictions.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v2.06.9mediumAV:L/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.4 · impact 10

v3.17.5highCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.8 · impact 6

v3.17.2highCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.2highCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:Hsecondary · security_alert@emc.comexploitability 0.6 · impact 6

v3.16.9mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-122US

affected products (129)

Products and version ranges known to be affected.

Dell BIOSConnectunspecified → Gen 11, Gen 10enisa_euvdEU
dell alienware m15 r6 firmware< 1.3.3nvdUScpe:2.3:o:dell:alienware_m15_r6_firmware:*:*:*:*:*:*:*:*
dell chengming 3990 firmware< 1.4.1nvdUScpe:2.3:o:dell:chengming_3990_firmware:*:*:*:*:*:*:*:*
dell chengming 3991 firmware< 1.4.1nvdUScpe:2.3:o:dell:chengming_3991_firmware:*:*:*:*:*:*:*:*
dell g15 5510 firmware< 1.4.0nvdUScpe:2.3:o:dell:g15_5510_firmware:*:*:*:*:*:*:*:*
dell g15 5511 firmware< 1.3.3nvdUScpe:2.3:o:dell:g15_5511_firmware:*:*:*:*:*:*:*:*
dell g3 3500 firmware≤ 1.9.0nvdUScpe:2.3:o:dell:g3_3500_firmware:*:*:*:*:*:*:*:*
dell g5 5500 firmware< 1.9.0nvdUScpe:2.3:o:dell:g5_5500_firmware:*:*:*:*:*:*:*:*
dell g7 7500 firmware< 1.9.0nvdUScpe:2.3:o:dell:g7_7500_firmware:*:*:*:*:*:*:*:*
dell g7 7700 firmware< 1.9.0nvdUScpe:2.3:o:dell:g7_7700_firmware:*:*:*:*:*:*:*:*
dell inspiron 14 5418 firmware< 2.1.0_a06nvdUScpe:2.3:o:dell:inspiron_14_5418_firmware:*:*:*:*:*:*:*:*
dell inspiron 15 5518 firmware< 2.1.0_a06nvdUScpe:2.3:o:dell:inspiron_15_5518_firmware:*:*:*:*:*:*:*:*
dell inspiron 15 7510 firmware< 1.0.4nvdUScpe:2.3:o:dell:inspiron_15_7510_firmware:*:*:*:*:*:*:*:*
dell inspiron 3501 firmware< 1.6.0nvdUScpe:2.3:o:dell:inspiron_3501_firmware:*:*:*:*:*:*:*:*
dell inspiron 3880 firmware< 1.4.1nvdUScpe:2.3:o:dell:inspiron_3880_firmware:*:*:*:*:*:*:*:*
dell inspiron 3881 firmware< 1.4.1nvdUScpe:2.3:o:dell:inspiron_3881_firmware:*:*:*:*:*:*:*:*
dell inspiron 3891 firmware< 1.0.11nvdUScpe:2.3:o:dell:inspiron_3891_firmware:*:*:*:*:*:*:*:*
dell inspiron 5300 firmware< 1.7.1nvdUScpe:2.3:o:dell:inspiron_5300_firmware:*:*:*:*:*:*:*:*
dell inspiron 5301 firmware< 1.8.1nvdUScpe:2.3:o:dell:inspiron_5301_firmware:*:*:*:*:*:*:*:*
dell inspiron 5310 firmware< 2.1.0nvdUScpe:2.3:o:dell:inspiron_5310_firmware:*:*:*:*:*:*:*:*

showing 20 of 129

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-06-24modified 2026-06-17

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+16123 more

references (4)

External citations — patches, advisories, analysis.

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