Untrusted search path vulnerability in Mozilla Firefox before 3.5.14 and 3.6.x before 3.6.11, Thunderbird before 3.0.9 and 3.1.x before 3.1.5, and SeaMonkey before 2.0.9 on Windows allows local users to gain privileges via a Trojan horse DLL in the current working directory.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12116
https://bugzilla.mozilla.org/show_bug.cgi?id=589190
http://www.mozilla.org/security/announce/2010/mfsa2010-71.html