7.2CVSSHIGH
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."
CVSS Vector Breakdown
Exploitability
AV:LAccess VectorLocal
AC:LAccess ComplexityLow
Au:NAuthenticationNone
Impact
C:CConfidentialityComplete
I:CIntegrityComplete
A:CAvailabilityComplete
Weaknesses
Affected Products
and 31 more affected products View all →
Attack Graph
Products CVE Techniques Tactics
Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.
Exploitability
Official Patch Available
MITRE ATT&CK
2 techniques Impact
Initial Access
References
http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspx
blogs.technet.com
http://osvdb.org/71735
osvdb.org
http://secunia.com/advisories/44156
secunia.com
and 8 more references View all →
Timeline
Published
Apr 13, 2011
Last Updated
Apr 29, 2026
Unlock Complete Vulnerability Intelligence
Get the full picture for CVE-2011-1229 and every CVE in our database. Create a free account — no credit card required.
Create Free AccountPlain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows