CVE-2021-36343

Name: CVE-2021-36343
Creator: NVD / NIST
Published: 2022-01-24T20:15:08.05+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.4/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2021-36343 is a medium-severity vulnerability rated 6.4/10 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

6.4/10

CVSS:3.1/AV:L/AC:H/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

Affected Software

Vendor	Product	Versions
Dell	Precision 5820 Tower Firmware	< 2.12.1
Dell	Precision 7510 Firmware	< 1.24.3
Dell	Precision 7520 Firmware	< 1.22.0
Dell	Precision 7530 Firmware	< 1.18.2
Dell	Precision 7540 Firmware	< 1.15.1
Dell	Precision 7550 Firmware	< 1.10.1
Dell	Precision 7560 Firmware	< 1.5.0
Dell	Precision 7710 Firmware	< 1.24.3
Dell	Precision 7720 Firmware	< 1.22.0
Dell	Precision 7730 Firmware	< 1.18.2
Dell	Precision 7740 Firmware	< 1.15.1
Dell	Precision 7750 Firmware	< 1.10.1
Dell	Precision 7760 Firmware	< 1.5.0
Dell	Vostro 13 5370 Firmware	< 1.20.0
Dell	Vostro 14 3468 Firmware	< 3.10.0
Dell	Vostro 14 3478 Firmware	< 1.15.0
Dell	Vostro 14 5468 Firmware	< 1.17.0
Dell	Vostro 14 5471 Firmware	< 1.20.0
Dell	Vostro 15 3568 Firmware	< 3.10.0
Dell	Vostro 15 3572 Firmware	< 1.12.0
Dell	Vostro 15 3578 Firmware	< 1.15.0
Dell	Vostro 15 5410 Firmware	< 2.4.1
Dell	Vostro 15 5510 Firmware	< 2.4.1
Dell	Vostro 15 5568 Firmware	< 1.17.0
Dell	Vostro 15 7570 Firmware	< 1.15.0
Dell	Vostro 15 7580 Firmware	< 1.18.0
Dell	Vostro 3070 Firmware	< 2.20.0
Dell	Vostro 3267 Firmware	< 1.18.0
Dell	Vostro 3268 Firmware	< 1.18.0
Dell	Vostro 3400 Firmware	< 1.9.0
Dell	Vostro 3401 Firmware	< 1.9.0
Dell	Vostro 3470 Firmware	< 2.20.0
Dell	Vostro 3471 Firmware	< 1.8.0
Dell	Vostro 3480 Firmware	< 1.16.0
Dell	Vostro 3481 Firmware	< 1.15.0
Dell	Vostro 3490 Firmware	< 1.15.0
Dell	Vostro 3500 Firmware	< 1.9.0
Dell	Vostro 3501 Firmware	< 1.9.0
Dell	Vostro 3510 Firmware	< 1.6.0
Dell	Vostro 3562 Firmware	< 1.19.0
Dell	Vostro 3580 Firmware	< 1.16.0
Dell	Vostro 3581 Firmware	< 1.15.0
Dell	Vostro 3582 Firmware	< 1.11.0
Dell	Vostro 3583 Firmware	< 1.16.0
Dell	Vostro 3584 Firmware	< 1.15.0
Dell	Vostro 3590 Firmware	< 1.15.0
Dell	Vostro 3660 Firmware	< 1.18.0
Dell	Vostro 3667 Firmware	< 1.18.0
Dell	Vostro 3668 Firmware	< 1.18.0
Dell	Vostro 3669 Firmware	< 1.18.0

Showing 50 of 414 affected configurations. See NVD for the full list.

References

https://www.dell.com/support/kbdoc/en-us/000193321/dsa-2021-240Vendor Advisory
https://www.dell.com/support/kbdoc/en-us/000193321/dsa-2021-240Vendor Advisory

Timeline

Published: Jan 24, 2022
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2021-36343?

How severe is CVE-2021-36343?

CVE-2021-36343 has a CVSS score of 6.4/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36343?

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-2021-36343?

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

Scan your code now

Source: NVD / NIST