Use-after-free vulnerability in the kernel-mode drivers in Microsoft Windows Vista SP1 and SP2 and Server 2008 Gold and SP2 allows local users to gain privileges or cause a denial of service (system crash) by using a large number of calls to the NtUserCheckAccessForIntegrityLevel function to trigger a failure in the LockProcessByClientId function, leading to deletion of an in-use process object, aka "Win32k Reference Count Vulnerability."

Threat-Mapped Scoring

Score: 1.5

Priority: P4 - Informational (Low)

• S10 – Denial of Service

EPSS

Score: 0.03812
Percentile: 0.87636

CVSS Scoring

Affected Products

• cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:*:x32:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x32:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:-:sp2:itanium:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*

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