Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since December 15, 2021.
CVE-2021-43890
Microsoft Windows AppX Installer Spoofing Vulnerability
Added to KEV December 15, 2021
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2021-43890
- Affected products
- Windows · Microsoft Windows · Microsoft
What happened
Microsoft Windows AppX Installer contains a spoofing vulnerability which has a high impacts to confidentiality, integrity, and availability.
What it means for your business
Microsoft Windows is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2021-43890). Microsoft Windows AppX Installer contains a spoofing vulnerability which has a high impacts to confidentiality, integrity, and availability. CISA remediation due date: 2021-12-29. If you need help checking exposure, call (864) 335-9223.
Required action
Apply updates per vendor instructions.
CISA due date: December 29, 2021
Sources
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