BEA WebLogic Server and WebLogic Express 8.1 SP4 and earlier, 7.0 SP5 and earlier, and 6.1 SP7 and earlier allow remote attackers to cause a denial of service (server thread hang) via unknown attack vectors.

BEA WebLogic Server and WebLogic Express 8.1 SP4 and earlier, 7.0 SP6 and earlier, and 6.1 SP7 and earlier, when Internet Inter-ORB Protocol (IIOP) is used, sometimes include a password in an exception message that is sent to a client or stored in a log file, which might allow remote attackers to perform unauthorized actions.

BEA WebLogic Server and WebLogic Express 9.0, 8.1, and 7.0 lock out the admin user account after multiple incorrect password guesses, which allows remote attackers who know or guess the admin account name to cause a denial of service (blocked admin logins).

BEA WebLogic Server and WebLogic Express 8.1 SP5 and earlier, and 7.0 SP6 and earlier, when using username/password authentication, does not lock out a username after the maximum number of invalid login attempts, which makes it easier for remote attackers to guess the password.