This is an email i got from Dyagnosis (i think it's a members website here ) today !

Dear MemorY None,
ALERT: A Level 10 Exploit has been released.

Published: 19.09.04
Source: BUGTRAQ
Type: remote
Level: 10 - Remote root exploit on a major OS distribution.
Description: It's possible to overflow buffer with AYT telnet protocol command.
Affected products:
FREEBSD:FreeBSD 5.0
FREEBSD:FreeBSD 4.3
OPENBSD:OpenBSD 2.9
BSDI:BSD/OS 4.2
NETBSD:NetBSD 1.5
SGI:Irix 6.5
SUN:Solaris 2.8
LINUX:Linux netkit-telnetd 0.13
SCO:OpenServer 5.0
APPLE:MacOS X 10.0
DEBIANebian netkit-telnetd 0.17


More info, exploit and scanner HERE

The link in the message doesn't work, can anybody shed some more info on this ?