Back to Database
Status published
High
CVE-2021-21573
Dell BIOSConnect feature contains a buffer overflow vulnerability. An authenticated...
Vulnerability Description
Dell BIOSConnect feature contains a buffer overflow vulnerability. An authenticated malicious admin user with local access to the system may potentially exploit this vulnerability to run arbitrary code and bypass UEFI restrictions.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-21573
Credits & Attribution
No credits recorded in the NVD database.
More from Dell
View All →CVE-2025-46699
Dell Data Protection Advisor, versions prior to 19.12, contains an...
Medium
4.3
CVE-2025-46696
Dell Secure Connect Gateway (SCG) 5.0 Appliance and Application, version(s)...
Medium
6.4
CVE-2025-46691
Dell PremierColor Panel Driver, versions prior to 1.0.0.1 A01, contains...
High
7.8
CVE-2025-46685
Dell SupportAssist OS Recovery, versions prior to 5.5.15.1, contain a...
High
7.5
CVE-2025-46684
Dell SupportAssist OS Recovery, versions prior to 5.5.15.1, contain a...
Medium
6.6
Affected Vendor
Dell
View all reports →Affected Software
BIOSConnect
Vulnerable Versions:
unspecified
Timeline
Official Publish:
June 24th, 2021
Last Modified:
September 17th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H