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Case File

CVE-2009-1127

HIGH · CVSS 7.2 EPSS 1.55%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-11-11 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.2. It affects Microsoft, Windows.

CVE
CVE-2009-1127
Severity
HIGH
CVSS
7.2
EPSS
1.55%
Microsoft Windows

Original NVD Description

win32k.sys in the kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 does not correctly validate an argument to an unspecified system call, which allows local users to gain privileges via a crafted application that triggers a NULL pointer dereference, aka "Win32k NULL Pointer Dereferencing Vulnerability."