CVE-2021-21557
Severity Score
6.7
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Dell PowerEdge Server BIOS and select Dell Precision Rack BIOS contain an out-of-bounds array access vulnerability. 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 System Management Mode.
Dell PowerEdge Server BIOS y select Dell Precision Rack BIOS contienen una vulnerabilidad de acceso a la matriz fuera de límites. Un usuario local malicioso con privilegios elevados puede explotar potencialmente esta vulnerabilidad, conllevando una denegación de servicio, ejecución de código arbitrario o divulgación de información en el Modo de Administración del Sistema
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-01-04 CVE Reserved
- 2021-06-14 CVE Published
- 2023-03-08 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
- CWE-125: Out-of-bounds Read
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.dell.com/support/kbdoc/000187958 | 2022-10-25 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Dell Search vendor "Dell" | Poweredge R640 Firmware Search vendor "Dell" for product "Poweredge R640 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge R640 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R640 Search vendor "Dell" for product "Poweredge R640" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R740 Firmware Search vendor "Dell" for product "Poweredge R740 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge R740 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R740 Search vendor "Dell" for product "Poweredge R740" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R740xd Firmware Search vendor "Dell" for product "Poweredge R740xd Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge R740xd Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R740xd Search vendor "Dell" for product "Poweredge R740xd" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R940 Firmware Search vendor "Dell" for product "Poweredge R940 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge R940 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R940 Search vendor "Dell" for product "Poweredge R940" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R540 Firmware Search vendor "Dell" for product "Poweredge R540 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge R540 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R540 Search vendor "Dell" for product "Poweredge R540" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R440 Firmware Search vendor "Dell" for product "Poweredge R440 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge R440 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R440 Search vendor "Dell" for product "Poweredge R440" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge T440 Firmware Search vendor "Dell" for product "Poweredge T440 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge T440 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge T440 Search vendor "Dell" for product "Poweredge T440" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge Xr2 Firmware Search vendor "Dell" for product "Poweredge Xr2 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge Xr2 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge Xr2 Search vendor "Dell" for product "Poweredge Xr2" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R740xd2 Firmware Search vendor "Dell" for product "Poweredge R740xd2 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge R740xd2 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R740xd2 Search vendor "Dell" for product "Poweredge R740xd2" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R840 Firmware Search vendor "Dell" for product "Poweredge R840 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge R840 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R840 Search vendor "Dell" for product "Poweredge R840" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R940xa Firmware Search vendor "Dell" for product "Poweredge R940xa Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge R940xa Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R940xa Search vendor "Dell" for product "Poweredge R940xa" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge T640 Firmware Search vendor "Dell" for product "Poweredge T640 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge T640 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge T640 Search vendor "Dell" for product "Poweredge T640" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge C6420 Firmware Search vendor "Dell" for product "Poweredge C6420 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge C6420 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge C6420 Search vendor "Dell" for product "Poweredge C6420" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge Fc640 Firmware Search vendor "Dell" for product "Poweredge Fc640 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge Fc640 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge Fc640 Search vendor "Dell" for product "Poweredge Fc640" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge M640 Firmware Search vendor "Dell" for product "Poweredge M640 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge M640 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge M640 Search vendor "Dell" for product "Poweredge M640" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge M640p Firmware Search vendor "Dell" for product "Poweredge M640p Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge M640p Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge M640p Search vendor "Dell" for product "Poweredge M640p" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge Mx740c Firmware Search vendor "Dell" for product "Poweredge Mx740c Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge Mx740c Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge Mx740c Search vendor "Dell" for product "Poweredge Mx740c" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge Mx840c Firmware Search vendor "Dell" for product "Poweredge Mx840c Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge Mx840c Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge Mx840c Search vendor "Dell" for product "Poweredge Mx840c" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge C4140 Firmware Search vendor "Dell" for product "Poweredge C4140 Firmware" | < 2.11.2 Search vendor "Dell" for product "Poweredge C4140 Firmware" and version " < 2.11.2" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge C4140 Search vendor "Dell" for product "Poweredge C4140" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge T140 Firmware Search vendor "Dell" for product "Poweredge T140 Firmware" | < 2.5.1 Search vendor "Dell" for product "Poweredge T140 Firmware" and version " < 2.5.1" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge T140 Search vendor "Dell" for product "Poweredge T140" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge T340 Firmware Search vendor "Dell" for product "Poweredge T340 Firmware" | < 2.5.1 Search vendor "Dell" for product "Poweredge T340 Firmware" and version " < 2.5.1" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge T340 Search vendor "Dell" for product "Poweredge T340" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R240 Firmware Search vendor "Dell" for product "Poweredge R240 Firmware" | < 2.5.1 Search vendor "Dell" for product "Poweredge R240 Firmware" and version " < 2.5.1" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R240 Search vendor "Dell" for product "Poweredge R240" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R340 Firmware Search vendor "Dell" for product "Poweredge R340 Firmware" | < 2.5.1 Search vendor "Dell" for product "Poweredge R340 Firmware" and version " < 2.5.1" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R340 Search vendor "Dell" for product "Poweredge R340" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R6415 Firmware Search vendor "Dell" for product "Poweredge R6415 Firmware" | < 1.16.1 Search vendor "Dell" for product "Poweredge R6415 Firmware" and version " < 1.16.1" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R6415 Search vendor "Dell" for product "Poweredge R6415" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R7415 Firmware Search vendor "Dell" for product "Poweredge R7415 Firmware" | < 1.16.1 Search vendor "Dell" for product "Poweredge R7415 Firmware" and version " < 1.16.1" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R7415 Search vendor "Dell" for product "Poweredge R7415" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R7425 Firmware Search vendor "Dell" for product "Poweredge R7425 Firmware" | < 1.16.1 Search vendor "Dell" for product "Poweredge R7425 Firmware" and version " < 1.16.1" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R7425 Search vendor "Dell" for product "Poweredge R7425" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R6515 Firmware Search vendor "Dell" for product "Poweredge R6515 Firmware" | < 2.2.4 Search vendor "Dell" for product "Poweredge R6515 Firmware" and version " < 2.2.4" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R6515 Search vendor "Dell" for product "Poweredge R6515" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R7515 Firmware Search vendor "Dell" for product "Poweredge R7515 Firmware" | < 2.2.4 Search vendor "Dell" for product "Poweredge R7515 Firmware" and version " < 2.2.4" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R7515 Search vendor "Dell" for product "Poweredge R7515" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R6525 Firmware Search vendor "Dell" for product "Poweredge R6525 Firmware" | < 2.2.5 Search vendor "Dell" for product "Poweredge R6525 Firmware" and version " < 2.2.5" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R6525 Search vendor "Dell" for product "Poweredge R6525" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge R7525 Firmware Search vendor "Dell" for product "Poweredge R7525 Firmware" | < 2.2.5 Search vendor "Dell" for product "Poweredge R7525 Firmware" and version " < 2.2.5" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge R7525 Search vendor "Dell" for product "Poweredge R7525" | - | - |
Safe
|
| Dell Search vendor "Dell" | Poweredge C6525 Firmware Search vendor "Dell" for product "Poweredge C6525 Firmware" | < 2.2.4 Search vendor "Dell" for product "Poweredge C6525 Firmware" and version " < 2.2.4" | - |
Affected
| in | Dell Search vendor "Dell" | Poweredge C6525 Search vendor "Dell" for product "Poweredge C6525" | - | - |
Safe
|