Earlier this week, a Google researcher published a report on vulnerabilities affecting all Symantec security products, including Norton Security, Norton 360, legacy Norton products, Symantec Endpoint Protection, Symantec Email Security, Symantec Protection Engine, and Symantec Protection for SharePoint Servers. All platforms are affected.
From the original report:
These vulnerabilities are as bad as it gets. They don’t require any user interaction, they affect the default configuration, and the software runs at the highest privilege levels possible. In certain cases on Windows, vulnerable code is even loaded into the kernel, resulting in remote kernel memory corruption.
Anyone who uses Symantec or Norton security products should install the available updates as soon as possible.