Until Microsoft releases a patch for two critical vulnerabilities affecting the font parsing component in all supported versions of Windows, some users can apply temporary protection in the form of a micropatch that prevents exploitation. The two flaws affect the Adobe Type Manager Library (maintained by Microsoft) and are in the ATMFD.DLL font driver that processes Adobe Type 1 PostScript and OpenType fonts. Microcode that mitigates the risk of exploitation is available for Windows 7 64-bit and Windows Server 2008 R2 that do not benefit from Microsoft’s Extended Security Updates (ESU)
Source: https://www.bleepingcomputer.com/news/security/actively-exploited-windows-font-parsing-bugs-get-temporary-fix/