medium6.1
CVE-2021-21556
Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a stack-based buffer overflow vulnerability in systems with…
Impact
Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a stack-based buffer overflow vulnerability in systems with NVDIMM-N 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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Dell | Poweredge R640 Firmware | before 2.11.2 |
| Dell | Poweredge R740 Firmware | before 2.11.2 |
| Dell | Poweredge R740xd Firmware | before 2.11.2 |
| Dell | Poweredge R940 Firmware | before 2.11.2 |
| Dell | Poweredge R840 Firmware | before 2.11.2 |
| Dell | Poweredge R940xa Firmware | before 2.11.2 |
| Dell | Poweredge T640 Firmware | before 2.11.2 |
| Dell | Poweredge Mx740c Firmware | before 2.11.2 |
| Dell | Poweredge Mx840c Firmware | before 2.11.2 |