CVE-2021-21554: Buffer Overflow
Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and, Dell Precision 7920 Rack Workstation BIOS contain a stack-based buffer overflow vulnerability in systems with Intel Optane DC Persistent Memory installed. 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 UEFI or BIOS Preboot Environment.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2021-21554?
CVE-2021-21554 is a stack-based buffer overflow vulnerability found in Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and Dell Precision 7920 Rack Workstation BIOS.
How does CVE-2021-21554 affect Dell PowerEdge R640?
Dell PowerEdge R640 systems with Intel Optane DC Persistent Memory installed are affected by CVE-2021-21554.
How severe is CVE-2021-21554?
CVE-2021-21554 has a severity rating of 6.7 (high).
How can a local malicious user exploit CVE-2021-21554?
A local malicious user with high privileges may potentially exploit CVE-2021-21554.
Where can I find more information about CVE-2021-21554?
You can find more information about CVE-2021-21554 on the Dell support website.