CVE-2012-2527

Use-after-free vulnerability in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges via a crafted application, aka "Win32k Use After Free Vulnerability."

• CWE-399

• http://www.us-cert.gov/cas/techalerts/TA12-227A.htmlThird Party Advisory, US Government Resource
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-055
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15706
• http://www.us-cert.gov/cas/techalerts/TA12-227A.htmlThird Party Advisory, US Government Resource
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-055
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15706

Published

Aug 15, 2012

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.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2012-2521Microsoft Internet Explorer 6 through 9 does not properly ha…
• CVE-2012-2522Microsoft Internet Explorer 6 through 9 does not properly ha…
• CVE-2012-2523Integer overflow in Microsoft Internet Explorer 8 and 9, JSc…
• CVE-2012-2524Microsoft Office 2007 SP2 and SP3 and 2010 SP1 allows remote…
• CVE-2012-2525Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
• CVE-2012-2526The Remote Desktop Protocol (RDP) implementation in Microsof…
• CVE-2012-2528Use-after-free vulnerability in Microsoft Word 2003 SP3, 200…
• CVE-2012-2529Integer overflow in the kernel in Microsoft Windows XP SP2 a…
• CVE-2012-2530Use-after-free vulnerability in win32k.sys in the kernel-mod…
• CVE-2012-2531Microsoft Internet Information Services (IIS) 7.5 uses weak …
• CVE-2012-2532Microsoft FTP Service 7.0 and 7.5 for Internet Information S…
• CVE-2012-2533Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…