Microsoft Office CVE-2020-0991 Remote Code Execution Vulnerability

Description

A remote code execution vulnerability exists in Microsoft Office 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 current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. The security update addresses the vulnerability by correcting how Microsoft Office handles objects in memory.

Affected Applications

Office 365 ProPlus for 32-bit Systems
Microsoft Office 2016 x86
Microsoft Office 2010 Service Pack 2 (64-bit editions)
Microsoft Office 2013 Service Pack 1 (64-bit editions)
Microsoft Office 2016 x64
Microsoft Office 2013 RT Service Pack 1
Microsoft Office 2019 for 64-bit editions
Office 365 ProPlus for 64-bit Systems
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2013 Service Pack 1 (32-bit editions)
Microsoft Office 2010 Service Pack 2 (32-bit editions)

CVE References

Other References