Symantec Norton Security prior to 22.16.3, SEP (Windows client) prior to and including 12.1 RU6 MP9, and prior to 14.2 RU1, SEP SBE prior to Cloud Agent 3.00.31.2817, NIS-22.15.2.22, SEP-12.1.7484.7002 and SEP Cloud prior to 22.16.3 may be susceptible to a kernel memory disclosure, which is a type of issue where a specially crafted IRP request can cause the driver to return uninitialized memory.

SEP (Mac client) prior to and including 12.1 RU6 MP9 and prior to 14.2 RU1 may be susceptible to a CSV/DDE injection (also known as formula injection) vulnerability, which is a type of issue whereby an application or website allows untrusted input into CSV files.

Buffer overflow in the sysplant driver in Symantec Endpoint Protection (SEP) Client 11.x and 12.x before 12.1 RU4 MP1b, and Small Business Edition before SEP 12.1, allows local users to execute arbitrary code via a long argument to a 0x00222084 IOCTL call.

SQL injection vulnerability in the management console in Symantec Endpoint Protection Manager (SEPM) 11.0 before 11.0.7405.1424 and 12.1 before 12.1.4023.4080, and Symantec Protection Center Small Business Edition 12.x before 12.1.4023.4080, allows remote authenticated users to execute arbitrary SQL commands via unspecified vectors.

The management console in Symantec Endpoint Protection Manager (SEPM) 11.0 before 11.0.7405.1424 and 12.1 before 12.1.4023.4080, and Symantec Protection Center Small Business Edition 12.x before 12.1.4023.4080, allows remote attackers to read arbitrary files via XML data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

The Application/Device Control (ADC) component in the client in Symantec Endpoint Protection (SEP) 11.x before 11.0.7.4 and 12.x before 12.1.2 RU2 and Endpoint Protection Small Business Edition 12.x before 12.1.2 RU2 does not properly handle custom polices, which allows local users to bypass intended policy restrictions and access files or directories via unspecified vectors.

Unquoted Windows search path vulnerability in the client in Symantec Endpoint Protection (SEP) 11.x before 11.0.7.4 and 12.x before 12.1.2 RU2 and Endpoint Protection Small Business Edition 12.x before 12.1.2 RU2 allows local users to gain privileges via a crafted program in the %SYSTEMDRIVE% directory.

The Management Console in Symantec Endpoint Protection (SEP) 11.x before 11.0.7.4 and 12.x before 12.1.2 RU2 and Endpoint Protection Small Business Edition 12.x before 12.1.2 RU2 does not properly perform authentication, which allows remote authenticated users to gain privileges by leveraging access to a limited-admin account.

The management console in Symantec Endpoint Protection (SEP) 11.0 before RU7-MP3 and 12.1 before RU2, and Symantec Endpoint Protection Small Business Edition 12.x before 12.1 RU2, does not properly validate input for PHP scripts, which allows remote authenticated users to execute arbitrary code via unspecified vectors.

The decomposer engine in Symantec Endpoint Protection (SEP) 11.0, Symantec Endpoint Protection Small Business Edition 12.0, Symantec AntiVirus Corporate Edition (SAVCE) 10.x, and Symantec Scan Engine (SSE) before 5.2.8 does not properly perform bounds checks of the contents of CAB archives, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted file.