
Microsoft fixes 63 vulnerabilities, including an actively exploited zero-day
On November’s Patch Tuesday, Microsoft fixed 63 vulnerabilities , including a critical zero-day vulnerability that had already been exploited in attacks. This time, the fixes affected a wide range of Windows components and Microsoft products, from the operating system kernel to the Office suite and cloud solutions. According to the company itself, the most dangerous vulnerability affected the Windows kernel and allowed for the escalation of system privileges; the vulnerability has been assigned the identifier CVE-2025-62215. The flaw allowed local privilege escalation by exploiting incorrect synchronization during resource sharing . The bug was discovered by Microsoft’s internal threat intelligence team. Of the










