Outlook 2016 / 2019 / 365 Security Update for December 2018

A Security Update has been released for Outlook 2016 Retail, Outlook 2019 and Office 365. It resolves the following vulnerability;

  • CVE-2018-8587
    Which could allow remote code execution via a specially crafted file attachment which must be opened by a user.

Based on your release channel, you’ll be updated to the following version;

  • Office 365, Outlook 2016 Retail, Outlook 2019 Retail
    Version 1811 (Build 11029.20108)
  • Outlook 2019 Volume License
    Version 1808 (Build 10339.20026)
  • Office 365 Semi Annual Channel
    Version 1803 (Build 9126-2336)

Note: Depending on your installation type, this update can be installed via the Microsoft Store or the Update Now button in Outlook itself. This update does not apply to msi-based installation of Office 2016.