CVE-2021-1647
Microsoft Defender Remote Code Execution Vulnerability
Published Jan 12, 2021 · updated Jun 16, 2026 · microsoft windows defender
Microsoft Defender contains an unspecified vulnerability that allows for remote code execution.
Timeline
Detection, updates, and resolution for this record.
Jan 12, 2021 · Catalog
Detected
Microsoft Defender contains an unspecified vulnerability that allows for remote code execution.
Nov 3, 2021 · CISA KEV
Known exploited
Apply updates per vendor instructions.
Nov 17, 2021 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Jun 16, 2026 · Catalog
Updated
Microsoft Defender contains an unspecified vulnerability that allows for remote code execution.
Required action
Apply updates per vendor instructions.
CISA due date Nov 17, 2021
Affected
- cpe microsoft/security essentialsversion unspecified
- cpe microsoft/system center endpoint protectionversion unspecified
- cpe microsoft/system center endpoint protection2012
- cpe microsoft/windows defenderversion unspecified
- vendor Microsoft Defenderversion unspecified
Sources
- CISA KEVCVE-2021-1647
Microsoft Defender contains an unspecified vulnerability that allows for remote code execution.
cisa.gov - CVE.orgCVE-2021-1647
Official CVE identifier
cve.org - FIRST EPSSCVE-2021-1647
30-day exploitation probability 39.4%
first.org - NIST NVDCVE-2021-1647
Microsoft Defender Remote Code Execution Vulnerability
nvd.nist.gov