i don't think there will be a PMImport for this advisory as it stands:
"An automatic updater of revoked certificates is included in supported editions of Windows 8, Windows 8.1, Windows RT, Windows RT 8.1, Windows Server 2012, and Windows Server 2012 R2, and for devices running Windows Phone 8 or Windows Phone 8.1. For these operating systems or devices, customers do not need to take any action because the CTL will be updated automatically.
For systems running Windows Vista, Windows 7, Windows Server 2008, or Windows Server 2008 R2 that are using the automatic updater of revoked certificates (seeMicrosoft Knowledge Base Article 2677070 for details), customers do not need to take any action because the CTL will be updated automatically.
For systems running Windows Vista, Windows 7, Windows Server 2008, or Windows Server 2008 R2, and that do not have the automatic updater of revoked certificates installed, this update is not available."
https://technet.microsoft.com/en-us/library/security/2982792.aspx
So if you don't get it automatically updated there's no manual update available for Symantec to provide.