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.

The following packages are affected: zh-emacs emacs xemacs xemacs-mule zh-xemacs zh-xemacs-mule xemacs-devel xemacs-devel-21.5 xemacs-devel-mule mule-common hanemacs CVE-2005-0100 Format string vulnerability in the movemail utility in (1) Emacs 20.x, 21.3, and possibly other versions, and (2) XEmacs 21.4 and earlier, allows remote malicious POP3 servers to execute arbitrary code via crafted packets.