The GetStringAMSHandler function in prgxhndl.dll in hndlrsvc.exe in the Intel Alert Handler service (aka Symantec Intel Handler service) in Intel Alert Management System (AMS), as used in Symantec Antivirus Corporate Edition 10.1.4.4010 on Windows 2000 SP4 and Symantec Endpoint Protection before 11.x, does not properly validate the CommandLine field of an AMS request, which allows remote attackers to cause a denial of service (application crash) via a crafted request.

The on-demand scanning in Symantec AntiVirus 10.0.x and 10.1.x before MR9, AntiVirus 10.2.x, and Client Security 3.0.x and 3.1.x before MR9, when Tamper protection is disabled, allows remote attackers to cause a denial of service (prevention of on-demand scanning) via "specific events" that prevent the user from having read access to unspecified resources.

Buffer overflow in the cliproxy.objects.1 ActiveX control in the Symantec Client Proxy (CLIproxy.dll) in Symantec AntiVirus 10.0.x, 10.1.x before MR9, and 10.2.x before MR4; and Symantec Client Security 3.0.x and 3.1.x before MR9 allows remote attackers to execute arbitrary code via a long argument to the SetRemoteComputerName function.

Symantec Reporting Server, as used in Symantec AntiVirus (SAV) Corporate Edition 10.1 before 10.1 MR8 and 10.2 before 10.2 MR2, Symantec Client Security (SCS) before 3.1 MR8, and the Symantec Endpoint Protection Manager (SEPM) component in Symantec Endpoint Protection (SEP) before 11.0 MR2, allows remote attackers to inject arbitrary text into the login screen, and possibly conduct phishing attacks, via vectors involving a URL that is not properly handled.

Multiple cross-site scripting (XSS) vulnerabilities in ccLgView.exe in the Symantec Log Viewer, as used in Symantec AntiVirus (SAV) before 10.1 MR8, Symantec Endpoint Protection (SEP) 11.0 before 11.0 MR1, Norton 360 1.0, and Norton Internet Security 2005 through 2008, allow remote attackers to inject arbitrary web script or HTML via a crafted e-mail message, related to "two parsing errors."

Multiple Symantec AntiVirus products, including Norton AntiVirus 2005 11.0.0, Web Security Web Security 3.0.1.72, Mail Security for SMTP 4.0.5.66, AntiVirus Scan Engine 4.3.7.27, SAV/Filter for Domino NT 3.1.1.87, and Mail Security for Exchange 4.5.4.743, when running on Windows, allows remote attackers to cause a denial of service (component crash) and avoid detection via a crafted RAR file.