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CVE-2021-1647

Published: Jan 12, 2021Updated: Oct 30, 2025 Sources: CVE List NVD BDUNVD-CWE-noinfo
7.8HIGH
NVD MITRE
EPSS Score
39.7%
Top 1.6%
CISA KEV
Active Exploitation
Since Nov 3, 2021
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Microsoft Defender Remote Code Execution Vulnerability

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

Microsoft Corp
commercial·USaka microsoft, microsoft corporation
Windows DefenderOn-premSecurity Product
Security Products / endpoint-av-edr
security essentialsOn-premSecurity Product
Security Products / endpoint-av-edr
System Center Endpoint ProtectionOn-premSecurity Product
Security Products / endpoint-av-edr
Microsoft Security EssentialsOn-premSecurity Product
Security Products / endpoint-av-edr
System Center 2012 R2 Endpoint ProtectionOn-premSecurity Product
Security Products / endpoint-av-edr
System Center 2012 Endpoint ProtectionOn-premSecurity Product
Security Products / endpoint-av-edr
Microsoft System Center Endpoint ProtectionOn-prem
Operating Systems / windows
Microsoft System Center 2012 R2 Endpoint ProtectionOn-prem
Operating Systems / windows
and 5 more affected products View all →

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Nov 3, 2021
Remediation due:Nov 17, 2021

Required action: Apply updates per vendor instructions.

Official Patch Available
Is your org exposed to CVE-2021-1647?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1647
msrc.microsoft.com
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1647
portal.msrc.microsoft.com
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1647
cisa.gov
and 2 more references View all →
News mentions
Could not load news mentions.

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