CVE-2021-43890
Microsoft Windows AppX Installer Spoofing Vulnerability
- 대응 우선순위
- 최우선
- CVSS
- 7.1
- EPSS
- 10.3% 백분위 95.1% · 2026.06.27 기준
- CISA KEV
- 등록
- 조치 기한
- 2021.12.29
- 공개일
- 2021.12.16
CISA KEV에 등록된 실제 악용 확인 취약점
We have investigated reports of a spoofing vulnerability in AppX installer that affects Microsoft Windows. Microsoft is aware of attacks that attempt to exploit this vulnerability by using specially crafted packages that include the malware family known as Emotet/Trickbot/Bazaloader. An attacker could craft a malicious attachment to be used in phishing campaigns. The attacker would then have to convince the user to open the specially crafted attachment. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrati...
공급사 Microsoft
제품 Windows
영향 버전 1.0.0.0, < 1.16, < 1.11
수정 버전 1.16, 1.11
Apply updates per vendor instructions.
조치 기한: 2021.12.29CVSS 벡터 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE 미등록
KEV 등록일 2021.12.15
랜섬웨어 캠페인 사용 확인됨
CISA 비고 https://nvd.nist.gov/vuln/detail/CVE-2021-43890
EPSS 데이터 기준일 2026.06.27