{"id":"CVE-2006-3942","aliases":["EUVD-2006-3935","GHSA-3f78-rrw8-v6hw"],"status":"published","title":"The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote...","description":"The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to cause a denial of service (system crash) via an SMB_COM_TRANSACTION SMB message that contains a string without null character termination, which leads to a NULL dereference in the ExecuteTransaction function, possibly related to an \"SMB PIPE,\" aka the \"Mailslot DOS\" vulnerability.  NOTE: the name \"Mailslot DOS\" was derived from incomplete initial research; the vulnerability is not associated with a mailslot.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.75027,"percentile":0.99511,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-20"],"published":"2006-07-31T23:00:00Z","modified":"2026-06-16T22:28:07Z","exploits":[{"source":"exploitdb","id":"EDB-2057","title":"Microsoft Windows - Mailslot Ring0 Memory Corruption (MS06-035)","type":"dos","platform":"windows","date":"2006-07-21","verified":true,"url":"https://www.exploit-db.com/exploits/2057"},{"source":"metasploit","id":"auxiliary/dos/windows/smb/ms06_035_mailslot","title":"Microsoft SRV.SYS Mailslot Write Corruption","type":"auxiliary","date":"2006-07-11","verified":true,"url":"https://www.rapid7.com/db/modules/auxiliary/dos/windows/smb/ms06_035_mailslot"},{"source":"metasploit","id":"auxiliary/dos/windows/smb/ms06_063_trans","title":"Microsoft SRV.SYS Pipe Transaction No Null","type":"auxiliary","verified":true,"url":"https://www.rapid7.com/db/modules/auxiliary/dos/windows/smb/ms06_063_trans"}],"products":[{"vendor":"microsoft","product":"windows_2000"},{"vendor":"microsoft","product":"windows_2003_server"},{"vendor":"microsoft","product":"windows_xp"}],"references":[{"url":"http://xforce.iss.net/xforce/alerts/id/231","tags":["third-party-advisory","x_refsource_ISS","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2006/3037","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/449179/100/0/threaded","tags":["vendor-advisory","x_refsource_HP","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/443287/100/200/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/bid/19215","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-063","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"http://www.coresecurity.com/common/showdoc.php?idx=562\u0026idxseccion=10","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://securitytracker.com/id?1016606","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://secunia.com/advisories/21276","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://securitytracker.com/id?1017035","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.osvdb.org/27644","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/27999","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A428","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://blogs.technet.com/msrc/archive/2006/07/28/443837.aspx","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-3942"},{"url":"https://github.com/advisories/GHSA-3f78-rrw8-v6hw"}],"sources":{"cve":[{"id":"CVE-2006-3942","description":"The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to cause a denial of service (system crash) via an SMB_COM_TRANSACTION SMB message that contains a string without null character termination, which leads to a NULL dereference in the ExecuteTransaction function, possibly related to an \"SMB PIPE,\" aka the \"Mailslot DOS\" vulnerability.  NOTE: the name \"Mailslot DOS\" was derived from incomplete initial research; the vulnerability is not associated with a mailslot.","status":"published","published":"2006-07-31T23:00:00Z","modified":"2024-08-07T18:48:39.439Z","updated_at":"2026-11-02T14:33:49.62488Z"}],"euvd":[{"id":"EUVD-2006-3935","description":"The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to cause a denial of service (system crash) via an SMB_COM_TRANSACTION SMB message that contains a string without null character termination, which leads to a NULL dereference in the ExecuteTransaction function, possibly related to an \"SMB PIPE,\" aka the \"Mailslot DOS\" vulnerability.  NOTE: the name \"Mailslot DOS\" was derived from incomplete initial research; the vulnerability is not associated with a mailslot.","status":"published","published":"2006-07-31T23:00:00Z","modified":"2024-08-07T18:48:39Z","updated_at":"2026-11-03T01:15:53.967777Z"}],"ghsa":[{"id":"GHSA-3f78-rrw8-v6hw","title":"The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote...","description":"The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to cause a denial of service (system crash) via an SMB_COM_TRANSACTION SMB message that contains a string without null character termination, which leads to a NULL dereference in the ExecuteTransaction function, possibly related to an \"SMB PIPE,\" aka the \"Mailslot DOS\" vulnerability.  NOTE: the name \"Mailslot DOS\" was derived from incomplete initial research; the vulnerability is not associated with a mailslot.","status":"published","published":"2022-05-01T07:13:48Z","modified":"2023-01-31T05:01:55Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:48:09.652829Z"}],"nvd":[{"id":"CVE-2006-3942","description":"The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to cause a denial of service (system crash) via an SMB_COM_TRANSACTION SMB message that contains a string without null character termination, which leads to a NULL dereference in the ExecuteTransaction function, possibly related to an \"SMB PIPE,\" aka the \"Mailslot DOS\" vulnerability.  NOTE: the name \"Mailslot DOS\" was derived from incomplete initial research; the vulnerability is not associated with a mailslot.","status":"published","published":"2006-07-31T23:04:00Z","modified":"2026-06-16T22:28:07.567Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:01:05.130518Z"}]}}