Exploitation Summary
CVE-2021-1647 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added November 3, 2021. EIP tracks 1 public exploit from researchers including findcool.
AI-analyzed exploit summary The repository contains no exploit code or technical details, only a link to Microsoft's advisory and a password hint, which is indicative of a social engineering lure.
Description
Microsoft Defender Remote Code Execution Vulnerability
Exploits (1)
nomisec
SUSPICIOUS
1 stars
by findcool · poc
https://github.com/findcool/cve-2021-1647
The repository contains no exploit code or technical details, only a link to Microsoft's advisory and a password hint, which is indicative of a social engineering lure.
Classification
Suspicious 90%
Attack Type
Other
Complexity
Theoretical
Reliability
Theoretical
Target:
Microsoft Defender
No auth needed
devstral-2 · analyzed Feb 18, 2026
Full analysis →
References (3)
Core 3
Core References
Patch, Vendor Advisory vendor-advisory
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
US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1647
Scores
CVSS v3
7.8
EPSS
0.3965
EPSS Percentile
98.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
active
Automatable
no
Technical Impact
total
Details
CISA KEV
2021-11-03
VulnCheck KEV
2021-01-12
InTheWild.io
2021-01-12
ENISA EUVD
EUVD-2021-7114
Status
published
Products (4)
microsoft/security_essentials
microsoft/system_center_endpoint_protection
microsoft/system_center_endpoint_protection
2012 (2 CPE variants)
microsoft/windows_defender
Published
Jan 12, 2021
KEV Added
Nov 03, 2021
Tracked Since
Feb 18, 2026