One Windows vulnerability, which affects memory management, has already been publicly revealed, and has been used for an exploit that can run on the Metasploit penetration testing software. Security researchers are urging administrators to update their own versions of Windows XP, Windows Vista, Windows 7, Windows 8 and Windows 2008, Windows 2012 and Windows RT as soon as possible.
"July is one of the uglier releases we've seen from Microsoft this year. To say that all Microsoft products are affected and everything is affected critically is not an overstatement," wrote Lumension security and forensic analyst Paul Henry in an email statement. "It's difficult to prioritize one or two because all the bulletins likely need your attention this Patch Tuesday."
In addition to Microsoft patches, administrators should also take a look at Adobe's monthly set of patches, also released Tuesday. They cover vulnerabilities in Adobe Flash, Shockwave and ColdFusion, which is server-side software for rendering websites.