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Case File

CVE-2011-1231

HIGH · CVSS 8.4 EPSS 1.35%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2011-04-13 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.4. It affects Microsoft, Windows.

CVE
CVE-2011-1231
Severity
HIGH
CVSS
8.4
EPSS
1.35%
Microsoft Windows

Original NVD Description

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."