| About | Greg Lambert evaluates the risks to existing applications and environments in each month's Patch Tuesday cycle. Patch Exchange now, and test your Windows updates If it weren't for some serious security issues involving on-premises Microsoft Exchange servers, I'd say things look pretty good for this month's batch of patches. Traitov / Getty Images If it weren't for the serious security issues surrounding on-premises Microsoft Exchange servers (CVE-2021-2685, CVE-2021-27065, CVE-2021-26857 and CVE-2021-26858), I would say things look pretty good for this month's Patch Tuesday. There are still things to test on the desktop, including printing, remote desktop connections via VPNs, and graphically intensive operations. And while the other lower-rated Microsoft Office and Development platform updates require attention, they don’t require a rapid response and can be added to the regular testing regime and deployment cadence.