Vulnerability Intelligence Report
Microsoft Defender Remote Code Execution Vulnerability
CVE-2021-1647
Microsoft Defender Remote Code Execution Vulnerability
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:39.65%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-122 ↗CWE-122 (via CISA KEV)
CWE-1285 ↗CWE-1285 (via CISA KEV)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft System Center Endpoint Protection | N/A (affected) |
| Microsoft | Microsoft System Center 2012 R2 Endpoint Protection | N/A (affected) |
| Microsoft | Microsoft Security Essentials | N/A (affected) |
| Microsoft | Microsoft System Center 2012 Endpoint Protection | N/A (affected) |
| Microsoft | Windows Defender | N/A (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2020-12-02T00:00:00 |
| Published | 2021-01-12T19:42:01 |
| Patch Date | 2021-01-12 |
| Last Updated | 2025-10-21T23:35:30 |
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