The Mozilla Updater and Windows Updater Service in Mozilla Firefox 12.0, Thunderbird 12.0, and SeaMonkey 2.9 on Windows allow local users to gain privileges by loading a DLL file in a privileged context.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16951
https://bugzilla.mozilla.org/show_bug.cgi?id=748764
http://www.mozilla.org/security/announce/2013/mfsa2013-45.html
http://www.mozilla.org/security/announce/2012/mfsa2012-35.html
http://lists.opensuse.org/opensuse-security-announce/2012-06/msg00012.html