Microsoft has updated a two-year-old spoofing vulnerability in Windows AppX Installer that affects Microsoft Windows, tracked as CVE-2021-43890. Microsoft has updated the advisory in reference to the reports suggesting an increase in exploitation attempts. Threat actors exploit the vulnerability using social engineering and phishing techniques to target Windows OS users and utilize the ms-appinstaller URI … Continue reading “Microsoft Addresses Windows AppX Installer Spoofing Vulnerability Reappeared in Exploitation (CVE-2021-43890)”