The \Device\SymEvent driver in Symantec Norton Personal Firewall 2006 9.1.0.33, and other versions of Norton Personal Firewall, Internet Security, AntiVirus, SystemWorks, Symantec Client Security SCS 1.x, 2.x, 3.0, and 3.1, Symantec AntiVirus Corporate Edition SAVCE 8.x, 9.x, 10.0, and 10.1, Symantec pcAnywhere 11.5 only, and Symantec Host, allows local users to cause a denial of service (system crash) via invalid data, as demonstrated by calling DeviceIoControl to send the data.

The SmartScan feature in the Auto-Protect module for Symantec Norton AntiVirus 2004 and 2005, as also used in Internet Security 2004/2005 and System Works 2004/2005, allows attackers to cause a denial of service (CPU consumption and system crash) by renaming a file on a network share.

Unknown vulnerability in the Auto-Protect module in Symantec Norton AntiVirus 2004 and 2005, as also used in Internet Security 2004/2005 and System Works 2004/2005, allows attackers to cause a denial of service (system hang or crash) by triggering a scan of a certain file type.