The remote host has a web browser installed that is vulnerable to multiple attack vectors.
Versions of Firefox prior to 10.0 are affected by the following security issues : - A use-after-free error exists related to removed 'nsDOMAttribute' child nodes. (CVE-2011-3659) - Various memory safety issues exist. (CVE-2012-0442, CVE-2012-0443) - Memory corruption errors exist related to the decoding of Ogg Vorbis files and processing of malformed XSLT stylesheets. (CVE-2012-0444, CVE-2012-0449) - The HTML5 frame navigation policy can be violated by allowing an attacker to replace a sub-frame in another domain's document. (CVE-2012-0445) - Scripts in frames are able to bypass security restrictions in XPConnect. This bypass can allow malicious web sites to carry out cross-site scripting attacks. (CVE-2012-0446) - An information disclosure issue exists when uninitialized memory is used as padding when encoding icon images. (CVE-2012-0447) - If a user chooses to export their Firefox Sync key the 'Firefox Recover Key.html' file is saved with incorrect permissions, making the file contents potentially readable by other users. Note that this issue only affects Firefox on Linux and Mac OS X systems. (CVE-2012-0450)