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://lists.omnikron.net/pipermail/kvirc/2010-May/000867.html http://www.vuxml.org/freebsd/8685d412-8468-11df-8d45-001d7d9eb79a.html

The following packages are affected: kvirc kvirc-devel CVE-2010-2451 Multiple format string vulnerabilities in the DCC functionality in KVIrc 3.4 and 4.0 have unspecified impact and remote attack vectors. CVE-2010-2452 Directory traversal vulnerability in the DCC functionality in KVIrc 3.4 and 4.0 allows remote attackers to overwrite arbitrary files via unknown vectors.