CVE-2011-1877

no score yetEPSS 1.5%

Use-after-free vulnerability in win32k.sys in the kernel-mode drivers in Microsoft 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 leverages incorrect driver object management, aka "Win32k Use After Free Vulnerability."

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
CWE: CWE-399
Published: 2011-07-13
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

microsoft:windows_7
microsoft:windows_server_2008
microsoft:windows_vista

References

http://osvdb.org/73779
http://secunia.com/advisories/45186
http://support.avaya.com/css/P8/documents/100144947
http://www.securityfocus.com/bid/48591
http://www.securitytracker.com/id?1025761

Check your stack JSON