{"schemaVersion":3,"id":"CVE-2011-1229","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges via a crafted application that triggers a NULL pointer dereference, a different vulnerability than other \"Vulnerability Type 2\" CVEs listed in MS11-034, aka \"Win32k Null Pointer De-reference Vulnerability.\"","dates":{"published":"2011-04-13T20:07:00.000Z","modified":"2024-08-06T22:21:33.406Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.2,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.2,"severity":"high","vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01468,"percentile":0.73327,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01468},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01468,"percentile":0.73327}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01468,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01468,"percentile":0.73327}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-476","name":"NULL Pointer Dereference","description":"The product dereferences a pointer that it expects to be valid but is NULL.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/476.html"}],"affected":[{"vendor":"avaya","product":"aura_conferencing_standard_edition","name":"aura conferencing standard edition","label":"aura_conferencing_standard_edition","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"6.0.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"6.0.0","eol":null,"hubHref":"/vendor/avaya/aura_conferencing_standard_edition"},{"vendor":"avaya","product":"callpilot","name":"callpilot","label":"callpilot","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.0.x, ≤ 5.0.x","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.0.x, ≤ 5.0.x","eol":null,"hubHref":"/vendor/avaya/callpilot"},{"vendor":"avaya","product":"communication_server_1000_telephony_manager","name":"communication server 1000 telephony manager","label":"communication_server_1000_telephony_manager","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 3.0.0, ≤ 4.0.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 3.0.0, ≤ 4.0.0","eol":null,"hubHref":"/vendor/avaya/communication_server_1000_telephony_manager"},{"vendor":"avaya","product":"meeting_exchange","name":"meeting exchange","label":"meeting_exchange","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 5.0.0, ≤ 5.2.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 5.0.0, ≤ 5.2.0","eol":null,"hubHref":"/vendor/avaya/meeting_exchange"},{"vendor":"avaya","product":"messaging_application_server","name":"messaging application server","label":"messaging_application_server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.0.x, ≤ 5.2.x","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.0.x, ≤ 5.2.x","eol":null,"hubHref":"/vendor/avaya/messaging_application_server"},{"vendor":"microsoft","product":"windows_2003_server","name":"windows 2003 server","label":"windows_2003_server","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/microsoft/windows_2003_server"},{"vendor":"microsoft","product":"windows_7","name":"windows 7","label":"windows_7","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/microsoft/windows_7"},{"vendor":"microsoft","product":"windows_server_2003","name":"windows server 2003","label":"windows_server_2003","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/microsoft/windows_server_2003"},{"vendor":"microsoft","product":"windows_server_2008","name":"windows server 2008","label":"windows_server_2008","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null},{"text":"r2","noFixRecorded":false,"fixedIn":null},{"text":"r2:sp1","noFixRecorded":false,"fixedIn":null}],"versionsText":"na | r2 | r2:sp1","eol":null,"hubHref":"/vendor/microsoft/windows_server_2008"},{"vendor":"microsoft","product":"windows_vista","name":"windows vista","label":"windows_vista","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/microsoft/windows_vista"},{"vendor":"microsoft","product":"windows_xp","name":"windows xp","label":"windows_xp","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/microsoft/windows_xp"}],"affectedCount":11,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.securityfocus.com/bid/47229","label":"www.securityfocus.com/bid/47229","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Third Party Advisory"]},{"url":"http://www.us-cert.gov/cas/techalerts/TA11-102A.html","label":"www.us-cert.gov/cas/techalerts/TA11-102A.html","hostname":"www.us-cert.gov","tags":["Third Party Advisory","X Refsource CERT","US Government Resource"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/66411","label":"exchange.xforce.ibmcloud.com/vulnerabilities/66411","hostname":"exchange.xforce.ibmcloud.com","tags":["VDB Entry","X Refsource XF"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034","label":"docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034","hostname":"docs.microsoft.com","tags":["Vendor Advisory","X Refsource MS","Patch"]},{"url":"http://www.vupen.com/english/advisories/2011/0952","label":"www.vupen.com/english/advisories/2011/0952","hostname":"www.vupen.com","tags":["VDB Entry","X Refsource VUPEN","Broken Link"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12503","label":"oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12503","hostname":"oval.cisecurity.org","tags":["VDB Entry","Signature","X Refsource OVAL","Third Party Advisory"]},{"url":"http://support.avaya.com/css/P8/documents/100133352","label":"support.avaya.com/css/P8/documents/100133352","hostname":"support.avaya.com","tags":["X Refsource CONFIRM","Third Party Advisory"]},{"url":"http://secunia.com/advisories/44156","label":"secunia.com/advisories/44156","hostname":"secunia.com","tags":["Third Party Advisory","X Refsource SECUNIA"]},{"url":"http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspx","label":"blogs.technet.com/b/…","hostname":"blogs.technet.com","tags":["X Refsource MISC","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id?1025345","label":"www.securitytracker.com/id?1025345","hostname":"www.securitytracker.com","tags":["VDB Entry","X Refsource SECTRACK","Third Party Advisory"]},{"url":"http://osvdb.org/71735","label":"osvdb.org/71735","hostname":"osvdb.org","tags":["VDB Entry","X Refsource OSVDB","Broken Link"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2011-04-13T20:07:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-06T22:21:33.406Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":29,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T00:54:56.409Z","stale":false,"partial":false}}