CVE-2012-1866: Input Validation
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 does not properly handle user-mode input passed to kernel mode for driver objects, which allows local users to gain privileges via a crafted application, aka "Clipboard Format Atom Name Handling Vulnerability."
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2012-1866?
CVE-2012-1866 has a severity rating of important, indicating a significant security risk.
How do I fix CVE-2012-1866?
To fix CVE-2012-1866, apply the security updates provided by Microsoft for the affected Windows versions.
What versions of Windows are affected by CVE-2012-1866?
CVE-2012-1866 affects Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2, and Windows 7.
Can CVE-2012-1866 allow unauthorized access?
Yes, CVE-2012-1866 can allow local users to gain elevated privileges, potentially leading to unauthorized access.
Is there a workaround for CVE-2012-1866 if I cannot apply the patch?
Currently, there is no officially recommended workaround for CVE-2012-1866, so applying the patch is the best option.