VulnerabilityAnalyzed

CVE-2021-36343

Dell BIOS contains an improper input validation vulnerability.

MEDIUM 6.4EPSS 0.24%

Does this matter?

Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 6.4 MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.24% probability · 15th percentile
CISA KEV: Not listed
Weakness: CWE-119, CWE-20
Affected: dell/precision 5820 tower firmware · dell/precision 7510 firmware · dell/precision 7520 firmware · dell/precision 7530 firmware · dell/precision 7540 firmware · dell/precision 7550 firmware · dell/precision 7560 firmware · dell/precision 7710 firmware · dell/precision 7720 firmware · dell/precision 7730 firmware · dell/precision 7740 firmware · dell/precision 7750 firmware · dell/precision 7760 firmware · dell/vostro 13 5370 firmware · dell/vostro 14 3468 firmware · dell/vostro 14 3478 firmware · dell/vostro 14 5468 firmware · dell/vostro 14 5471 firmware · dell/vostro 15 3568 firmware · dell/vostro 15 3572 firmware · +40 more
Source: security_alert@emc.com

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.