Microsoft issued patches for 56 security flaws in Windows and other products at the end of 2025, including one actively exploited vulnerability. The update addresses multiple critical and important flaws, with emphasis on the use-after-free CVE-2025-62221 affecting file system filter drivers used by major cloud storage services. #CVE-2025-62221 #WindowsSecurity #PatchTuesday
Keypoints
- Microsoft released security patches for 56 vulnerabilities across Windows products in late 2025.
- Among the flaws, three are rated Critical, and 53 are rated Important, with some publicly known at the time of patching.
- The actively exploited vulnerability, CVE-2025-62221, allows privilege escalation via a use-after-free flaw in the Cloud Files Mini Filter Driver.
- Additional zero-day vulnerabilities include command injection flaws in Windows PowerShell and GitHub Copilot for JetBrains.
- Several vendors beyond Microsoft, such as Adobe, Cisco, and Google, also released security updates to address multiple vulnerabilities.
Read More: https://thehackernews.com/2025/12/microsoft-issues-security-fixes-for-56.html