Windows server crashes referencing the Symantec Endpoint Protection (SEP) firewall driver, Teefer.sys. Prior the the crash, there is a reference in the Windows Event Viewer to a crash from the SEP process ccSvcHst.exe.
Network applications may also behave unexpectedly or crash.
Blue Screen of Death (BSOD) BugCheck 1E referencing Teefer.sys
Unexpected termination of ccSvcHst.exe during a combination of high network traffic and high CPU usage leading to memory corruption.
This issue is resolved in SEP 14. For more information on upgrade, please see Upgrade or migrate to Endpoint Protection 14