A Security Update has been released for Outlook 2013. It resolves the following vulnerability;
- CVE-2020-1349: Microsoft Outlook Remote Code Execution Vulnerability
A remote code execution vulnerability exists in Microsoft Outlook software when it fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the same permissions as the current user.
To exploit the vulnerability, a user must open a specially crafted file with an affected version of Microsoft Outlook software. 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.
Note that the Preview Pane is an attack vector for this vulnerability.
The security update addresses the vulnerability by correcting how Microsoft Outlook handles files in memory.