Symantec Messaging Gateway, prior to 10.7.1, may be susceptible to a privilege escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user.

The Symantec Messaging Gateway before 10.6.3-267 can encounter an issue of cross site request forgery (also known as one-click attack and is abbreviated as CSRF or XSRF), which is a type of malicious exploit of a website where unauthorized commands are transmitted from a user that the web application trusts. A CSRF attack attempts to exploit the trust that a specific website has in a user's browser.

The Symantec Messaging Gateway before 10.6.3-267 can encounter an issue of remote code execution, which describes a situation whereby an individual may obtain the ability to execute commands remotely on a target machine or in a target process. In this type of occurrence, after gaining access to the system, the attacker may attempt to elevate their privileges.