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CVE-2021-21554

Common vulnerabilities & exposures (CVE)

CVE databaseCVE database blogpostRelease & EoL database
 
Published at: - 14-06-2021 09:15
Last modified: - 26-10-2022 01:43
Total changes: - 3

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Low
Attack complexity
Local
Attack vector
High
Availability
High
Confidentiality
High
Integrity
High
Privileges required
Unchanged
Scope
None
User interaction
6.7
Base score
0.8
5.9
Exploitability score
Impact score
 

Verification logic

 

Reference

  • N/A-Patch, Vendor Advisory
 


Keywords

NVD

 

CVE-2021-21554

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures

 

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