CVE-2011-1229

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."

• CWE-476

• http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspxVendor Advisory
• http://osvdb.org/71735Broken Link
• http://secunia.com/advisories/44156Third Party Advisory
• http://support.avaya.com/css/P8/documents/100133352Third Party Advisory
• http://www.securityfocus.com/bid/47229Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id?1025345Third Party Advisory, VDB Entry
• http://www.us-cert.gov/cas/techalerts/TA11-102A.htmlThird Party Advisory, US Government Resource
• http://www.vupen.com/english/advisories/2011/0952Broken Link
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034Patch, Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/66411VDB Entry
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12503Third Party Advisory
• http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspxVendor Advisory
• http://osvdb.org/71735Broken Link
• http://secunia.com/advisories/44156Third Party Advisory
• http://support.avaya.com/css/P8/documents/100133352Third Party Advisory
• http://www.securityfocus.com/bid/47229Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id?1025345Third Party Advisory, VDB Entry
• http://www.us-cert.gov/cas/techalerts/TA11-102A.htmlThird Party Advisory, US Government Resource
• http://www.vupen.com/english/advisories/2011/0952Broken Link
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034Patch, Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/66411VDB Entry
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12503Third Party Advisory

Published

Apr 13, 2011

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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