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CISA Known Exploited Vulnerabilities

Microsoft Defender Remote Code Execution Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV
2021-11-03
Remediation due
2021-11-17

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2021-1647

Description

Microsoft Defender Remote Code Execution Vulnerability

Severity

CVSS 3.1 · CNA7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
SSVC · CISA-ADP
Exploitationactive
Automatableno
Technical impacttotal

Affected Products

VendorProductAffected versions
MicrosoftMicrosoft System Center Endpoint Protection
N/A
MicrosoftMicrosoft System Center 2012 R2 Endpoint Protection
N/A
MicrosoftMicrosoft Security Essentials
N/A
MicrosoftMicrosoft System Center 2012 Endpoint Protection
N/A
MicrosoftWindows Defender
N/A

References

2 Links

Record Details

Published
2021-01-12
Last updated
2025-10-21
Assigner (CNA)
microsoft
Credited to
-

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.