KEV Entry

CVE-2021-1647

Known Exploited Vulnerability Entry Previdian

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Entry Details
Confirmed Exploited

CVE-2021-1647

2021-11-03 01:00 CET

Timestamps

2021-11-03

2021-11-03

Scope

Microsoft Defender Remote Code Execution Vulnerability | Affected: Microsoft / Microsoft System Center Endpoint Protection, Microsoft System Center 2012 R2 Endpoint Protection, Microsoft Security Essentials, Microsoft System Center 2012 Endpoint Protection, Windows Defender | CVSS: 7.8 (HIGH) | EPSS: 0.39392 | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2021-1647', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-1647'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2021-1647'}

8169d2fc-1406-4271-bf34-79d7fc795cb2

Previdian
caeb2787-0d58-4236-9039-7c86c3e566f3

2026-10-02 09:10 CEST

2026-10-02 09:10 CEST

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian successful_exploitation 0.70
View details 
{
  "added_date": "2021-11-03T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cve_id": "CVE-2021-1647",
  "cvss_estimated": false,
  "cvss_score": 7.8,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.98565,
  "epss_score": 0.39392,
  "feed": "Previdian (previdian.com)",
  "ghsa_id": null,
  "not_yet_in_cisa_kev": false,
  "previous_ids": [],
  "product": "Microsoft System Center Endpoint Protection, Microsoft System Center 2012 R2 Endpoint Protection, Microsoft Security Essentials, Microsoft System Center 2012 Endpoint Protection, Windows Defender",
  "title": "Microsoft Defender Remote Code Execution Vulnerability",
  "used_in_malware": "unknown",
  "vendor": "Microsoft",
  "virtual_patch": false,
  "vulnerability_id": "CVE-2021-1647"
}
 -
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