Microsoft just fixed 63 security flaws including one zero-day — update your PC right now

Though not as big of an event as last month, Microsoft’s November Patch Tuesday does contain fixes for 63 unique flaws including critical fixes for one actively exploited zero-day vulnerability and a critical severity bug.

Of the 63 total flaws, 4 are rated critical and 59 are important in severity. As far as the type of vulnerability associated with the bug: 29 of them are related to privilege escalation, 16 are remote code execution, 11 are information disclosure, 3 are denial of service (DoS) two security feature bypass and two are spoofing bugs.

According to reporting from Dark Reading, the zero-day vulnerability (tracked as CVE-2025-62215 ) is a privilege escalation flaw that was discovered and reported on by the Microsoft Threat Intelligence Center (MSTIC) and Microsoft Security Re