Security updates have been released for Exchange 2016 and Exchange 2019.
- CVE-2020-16875: Microsoft Exchange Memory Corruption Vulnerability
A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the System user. An attacker could then install programs; view, change, or delete data; or create new accounts.
Exploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Exchange server.
The security update addresses the vulnerability by correcting how Microsoft Exchange handles objects in memory.
View: Description of the security update for Microsoft Exchange Server 2019 and 2016: September 8, 2020
Download: Security Update For Exchange Server 2019 CU6 (KB4577352)
Download: Security Update For Exchange Server 2019 CU5 (KB4577352)
Download: Security Update For Exchange Server 2016 CU17 (KB4577352)
Download: Security Update For Exchange Server 2016 CU16 (KB4577352)