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McAfee blocking .ics calendar invites

McAfee is blocking Outlook .ics invites

Some stand-alone versions of McAfee Endpoint Security are blocking .ics calendar invites, preventing them from being downloaded or displaying a message that the file is violating the rule "Microsoft Outlook VEVENT Vulnerability".

This has been corrected in the latest download, but to change this rule without upgrading, do the following:

  • Right click the McAfee shield in the system tray icon and select McAfee Endpoint Security
  • Click on Threat Prevention
  • Click Show Advanced
  • Click Exploit Prevention
  • Scroll down to the 'Quick find' box in the Signatures section and enter Vevent
  • Rule 3809 should be shown, uncheck the block and report settings options.
  • Click apply

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