CVSS 3.1
6.7 mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HCVE-2021-21554
Medium (6.7) in dell. EPSS 0.3% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 26% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-787, CWE-122
- Published
- Modified
- Record from
- the NVD, synced
Affected
- dell:poweredge_mx740c_firmware
- dell:poweredge_mx840c_firmware
- dell:poweredge_r640_firmware
- dell:poweredge_r740_firmware
- dell:poweredge_r740xd_firmware
- dell:poweredge_r840_firmware
- dell:poweredge_r940_firmware
- dell:poweredge_r940xa_firmware
- dell:precision_7920_firmware