Windows Server 2012: The remote host has an ActiveX control installed with multiple vulnerabilities

Problem

System admins informed me that they had ran a scan on one the SharePoint 2013 farm servers and found that flash installation generating warnings:

Synopsis: The remote host has an ActiveX control installed with multiple vulnerabilities.
Description: The remote host is missing KB2758994.  It may, therefore, be affected by the following vulnerabilities related to the installed version of the Adobe Flash ActiveX control :
  - Multiple memory corruption errors exist that could lead to code execution...
  - Multiple buffer overflow errors exist that could lead to code execution...
  - An unspecified issue exists having unspecified impact...
Solution: Install Microsoft KB2758994.

Checked Windows Programs and Features, View Installed Updates, but wasn't listed.

Solution

• Install patch KB2758994.

References

• Nessus
• Update for Internet Explorer Flash Player for Windows 8 (KB2758994)