SeaMonkey is vulnerable to Remote Code Execution (RCE). Due to a flaw found in the way SeaMonkey displays a right-to-left override character when downloading a file. In these cases, the name displayed in the title bar differs from the name displayed in the dialog body. An attacker could use this flaw to trick a user into downloading a file that has a file name or extension that differs from what the user expected.
lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
secunia.com/advisories/38977
sunsolve.sun.com/search/document.do?assetkey=1-26-272909-1
www.mandriva.com/security/advisories?name=MDVSA-2009:294
www.mozilla.org/security/announce/2009/mfsa2009-62.html
www.redhat.com/support/errata/RHSA-2010-0153.html
www.redhat.com/support/errata/RHSA-2010-0154.html
www.ubuntu.com/usn/USN-915-1
www.vupen.com/english/advisories/2009/3334
www.vupen.com/english/advisories/2010/0648
www.vupen.com/english/advisories/2010/0650
access.redhat.com/errata/RHSA-2009:1531
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/show_bug.cgi?id=511521
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11218
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6541