The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be susceptible to a denial of service (DoS) exploit. A DoS attack is a type of attack whereby the perpetrator attempts to make a particular machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a specific host within a network.
The Web Email Protection component in Symantec Encryption Management Server (aka PGP Universal Server) before 3.3.2 allows remote authenticated users to read the stored outbound e-mail messages of arbitrary users via a modified URL.