This patch for Symantec Messaging Gateway for Service Providers (SMG-SP) 10.6 addresses SYM-015.
This vulnerability impacts all versions of SMG-SP prior to version 10.6 patch 259.
Please see the SYM16-015 security advisory for more information - https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160919_00
For SMG-SP 10.6, please download and apply the attached patch for your installation and ensure that the file checksums match those in the patch release notes.
Installation instructions for Linux / Solaris
Installation instructions for Windows
Start the Brightmail Conduit and the Brightmail Server using the Windows Services Management Console.