CVE-2021-1647
Microsoft Defender Remote Code Execution Vulnerability
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
Yes
*KEV
Decision
-
*SSVC
Descriptions
Microsoft Defender Remote Code Execution Vulnerability
Una Vulnerabilidad de Ejecución de Código Remota de Microsoft Defender
Microsoft Defender contains an unspecified vulnerability that allows for remote code execution.
*Credits:
N/A
CVSS Scores
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
- 2020-12-02 CVE Reserved
- 2021-01-12 CVE Published
- 2021-11-03 Exploited in Wild
- 2021-11-17 KEV Due Date
- 2024-10-08 CVE Updated
- 2024-11-01 EPSS Updated
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (2)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1647 | 2023-12-29 |
| URL | Date | SRC |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1647 | 2024-10-08 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 20h2 Search vendor "Microsoft" for product "Windows 10" and version "20h2" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1607 Search vendor "Microsoft" for product "Windows 10" and version "1607" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1803 Search vendor "Microsoft" for product "Windows 10" and version "1803" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1809 Search vendor "Microsoft" for product "Windows 10" and version "1809" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 1909 Search vendor "Microsoft" for product "Windows 10" and version "1909" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 10 Search vendor "Microsoft" for product "Windows 10" | 2004 Search vendor "Microsoft" for product "Windows 10" and version "2004" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 7 Search vendor "Microsoft" for product "Windows 7" | - | sp1 |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows 8.1 Search vendor "Microsoft" for product "Windows 8.1" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Rt 8.1 Search vendor "Microsoft" for product "Windows Rt 8.1" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | - | sp2 |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008" | r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2" | sp1, x64 |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012" | r2 Search vendor "Microsoft" for product "Windows Server 2012" and version "r2" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | 20h2 Search vendor "Microsoft" for product "Windows Server 2016" and version "20h2" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | 1909 Search vendor "Microsoft" for product "Windows Server 2016" and version "1909" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | 2004 Search vendor "Microsoft" for product "Windows Server 2016" and version "2004" | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Windows Defender Search vendor "Microsoft" for product "Windows Defender" | - | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019" | - | - |
Safe
|
| Microsoft Search vendor "Microsoft" | Security Essentials Search vendor "Microsoft" for product "Security Essentials" | - | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | System Center Endpoint Protection Search vendor "Microsoft" for product "System Center Endpoint Protection" | - | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | System Center Endpoint Protection Search vendor "Microsoft" for product "System Center Endpoint Protection" | 2012 Search vendor "Microsoft" for product "System Center Endpoint Protection" and version "2012" | - |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | System Center Endpoint Protection Search vendor "Microsoft" for product "System Center Endpoint Protection" | 2012 Search vendor "Microsoft" for product "System Center Endpoint Protection" and version "2012" | r2 |
Affected
| ||||||