7.2
CVSSv2

CVE-2021-21554

Published: 14/06/2021 Updated: 25/10/2022
CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9
CVSS v3 Base Score: 6.7 | Impact Score: 5.9 | Exploitability Score: 0.8
VMScore: 641
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

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.

Vulnerability Trend

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dell poweredge_r640_firmware

dell poweredge_r740_firmware

dell poweredge_r740xd_firmware

dell poweredge_r940_firmware

dell poweredge_r840_firmware

dell poweredge_r940xa_firmware

dell poweredge_mx740c_firmware

dell poweredge_mx840c_firmware

dell precision_7920_firmware -