PT-2021-14605 · Dell · Dell Poweredge Server Bios+1

Published 2021-06-14 · Updated 2022-10-25 · CVE-2021-21557

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Dell PowerEdge Server BIOS (affected versions not specified) Dell Precision Rack BIOS (affected versions not specified)

Description The issue is related to an out-of-bounds array access. A local malicious user with high privileges may exploit this, potentially leading to a denial of service, arbitrary code execution, or information disclosure in System Management Mode.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

RCE

Weakness Enumeration

CWE-125

CWE-20

Related Identifiers

CVE-2021-21557

Affected Products

Dell Poweredge Server Bios

Dell Precision Rack Bios

References · 3

• https://osv.dev/vulnerability/CVE-2021-21557 · Vendor Advisory
• https://dell.com/support/kbdoc/000187958 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21557 · Security Note