CVE-2021-43890

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2021-43890

Confirmed

Yes

2021-12-15 00:00 UTC

Timestamps

2021-12-15

2021-12-15

Scope

KEV entry: Microsoft Windows AppX Installer Spoofing Vulnerability | Affected: Microsoft / Windows | Description: Microsoft Windows AppX Installer contains a spoofing vulnerability which has a high impacts to confidentiality, integrity, and availability. | Required action: Apply updates per vendor instructions. | Due date: 2021-12-29 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-43890

References
  • {'id': 'CVE-2021-43890', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-43890'}

fd46637f-c1a7-46d2-8347-dbd0a37d836a

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 13:25 UTC

2026-02-06 07:53 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [],
  "date_added": "2021-12-15",
  "due_date": "2021-12-29",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Known",
  "product": "Windows",
  "vendorProject": "Microsoft",
  "vulnerabilityName": "Microsoft Windows AppX Installer Spoofing Vulnerability"
}
 -
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