Exploit Wednesday: The blind spot in your Patch Tuesday routine
On Patch Tuesday in January 2023, Microsoft fixed a privilege escalation flaw in afd.sys, the Windows driver behind the Winsock networking interface. Two IBM X-Force researchers who had never worked with that driver compared the old and new versions of the file and had a working exploit for Windows 11 in about a day. China's 360 IceSword Lab later reported finding the same flaw already exploited in the wild that month.