CVE-2021-21557

Description

Dell PowerEdge Server BIOS and select Dell Precision Rack BIOS contain an out-of-bounds array access vulnerability. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of service, arbitrary code execution, or information disclosure in System Management Mode.

Categories

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory dell.com
Affected: Dell PowerEdge BIOS Intel 15G
Published at:
Updated at:

References

Link Tags
https://www.dell.com/support/kbdoc/000187958 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-21557?
CVE-2021-21557 has been scored as a high severity vulnerability.
How to fix CVE-2021-21557?
To fix CVE-2021-21557, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21557 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-21557 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21557?
CVE-2021-21557 affects Dell PowerEdge BIOS Intel 15G.
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