CVE-2021-36283

Name: CVE-2021-36283
Creator: NVD / NIST
Published: 2021-09-28T20:15:07.567+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2021-36283 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

Metrics

CVSS 3.1

6.7/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.24%

15.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Dell	Chengming 3990 Firmware	< 1.3.1
Dell	Chengming 3991 Firmware	< 1.3.1
Dell	G3 15 3500 Firmware	< 1.7.1
Dell	G3 15 3590 Firmware	< 1.12.0
Dell	G3 15 5500 Firmware	< 1.7.1
Dell	Inspiron 3493 Firmware	< 1.12.0
Dell	Inspiron 3501 Firmware	< 1.1.0
Dell	Inspiron 3593 Firmware	< 1.12.0
Dell	Inspiron 3793 Firmware	< 1.12.0
Dell	Inspiron 3880 Firmware	< 1.3.1
Dell	Inspiron 3881 Firmware	< 1.3.1
Dell	Inspiron 5400 2-In-1 Firmware	< 1.5.0
Dell	Inspiron 5490 Firmware	< 1.12.0
Dell	Inspiron 5493 Firmware	< 1.12.0
Dell	Inspiron 5498 Firmware	< 1.12.0
Dell	Inspiron 5590 Firmware	< 1.12.0
Dell	Inspiron 5593 Firmware	< 1.12.0
Dell	Inspiron 5598 Firmware	< 1.12.0
Dell	Inspiron 7391 2-In-1 Firmware	< 1.9.1
Dell	Inspiron 7500 Firmware	< 1.5.1
Dell	Inspiron 7500 2-In-1 Silver Firmware	< 1.5.0
Dell	Inspiron 7501 Firmware	< 1.5.1
Dell	Inspiron 7590 Firmware	< 1.8.0
Dell	Inspiron 7591 Firmware	< 1.8.0
Dell	Latitude 3310 Firmware	< 1.8.3
Dell	Latitude 3310 2-In-1 Firmware	< 1.17.1
Dell	Latitude 5300 Firmware	< 1.12.1
Dell	Latitude 5300 2-In-1 Firmware	< 1.12.1
Dell	Latitude 5310 Firmware	< 1.4.2
Dell	Latitude 5310 2 In 1 Firmware	1.4.2
Dell	Latitude 5400 Firmware	< 1.10.1
Dell	Latitude 5401 Firmware	< 1.11.1
Dell	Latitude 5410 Firmware	< 1.4.3
Dell	Latitude 5411 Firmware	< 1.4.3
Dell	Latitude 5500 Firmware	< 1.10.1
Dell	Latitude 5511 Firmware	< 1.4.3
Dell	Latitude 7200 2 In 1 Firmware	< 1.10.1
Dell	Latitude 7210 2 In 1 Firmware	< 1.5.1
Dell	Latitude 7220ex Rugged Extreme Tablet Firmware	< 1.9.1
Dell	Latitude 7300 Firmware	< 1.11.1
Dell	Latitude 7310 Firmware	< 1.5.1
Dell	Latitude 7400 Firmware	< 1.11.1
Dell	Latitude 7400 2-In-1 Firmware	< 1.10.0
Dell	Latitude 7410 Firmware	< 1.5.1
Dell	Latitude 9410 Firmware	< 1.5.1
Dell	Latitude 9510 Firmware	< 1.4.2
Dell	Optiplex 3080 Firmware	< 1.3.1
Dell	Optiplex 3280 Aio Firmware	< 1.3.1
Dell	Optiplex 5080 Firmware	< 1.3.1
Dell	Optiplex 5480 Aio Firmware	< 1.4.0

Showing 50 of 85 affected configurations. See NVD for the full list.

References

https://www.dell.com/support/kbdoc/000191495/Patch, Vendor Advisory
https://www.dell.com/support/kbdoc/000191495/Patch, Vendor Advisory

Timeline

Published: Sep 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36283?

How severe is CVE-2021-36283?

CVE-2021-36283 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36283?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-36283?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST