CVEvulnerability
CVE-2021-1647
CISA Known Exploited Vulnerability
Microsoft Defender Remote Code Execution Vulnerability — Microsoft Defender
Microsoft Defender contains an unspecified vulnerability that allows for remote code execution.
- Added to KEV
- 2021-11-03
- Remediation due
- 2021-11-17
- Ransomware use
- Unknown
- Required action
- Apply updates per vendor instructions.
- Notes
- https://nvd.nist.gov/vuln/detail/CVE-2021-1647
- Status
- Analyzed
- Published
- 2021-01-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Description
Microsoft Defender Remote Code Execution Vulnerability
Affected configurations
• microsoft windows defender
• microsoft security essentials
• microsoft system center endpoint protection
• microsoft system center endpoint protection 2012
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1647 Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1647 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1647 US Government Resource