CVE-2021-43890
CISA KEV RANSOMWARE
ACT NOW
Priority: 0.00
BB Relevance:
0/100
Published: N/A
Modified: N/A
First seen: 2026-10-29
Status: pending_score
Description
Microsoft Windows AppX Installer contains a spoofing vulnerability which has a high impacts to confidentiality, integrity, and availability.
CISA Known Exploited Vulnerability
Vendor / Product
Microsoft — Windows
Date Added
2021-12-15
Remediation Due
2021-12-29
Ransomware Use
CONFIRMED
https://nvd.nist.gov/vuln/detail/CVE-2021-43890
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| microsoft | app_installer | < 1.16 |
| microsoft | app_installer | < 1.11 |
References & Advisories (6)
US Government Resource
Press/Media Coverage
Third Party Advisory
Press/Media Coverage
Third Party Advisory
Patch
Vendor Advisory
Issue Tracking
Exploit
Vendor Advisory