The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://www.mozilla.org/security/announce/2010/mfsa2010-25.html http://www.vuxml.org/freebsd/ec8f449f-40ed-11df-9edc-000f20797ede.html

The following package is affected: firefox CVE-2010-1121 Unspecified vulnerability in Mozilla Firefox 3 on Windows 7 allows remote attackers to execute arbitrary code via unknown vectors that trigger memory corruption, as demonstrated by Nils during a Pwn2Own competition at CanSecWest 2010.