HIGH
CVE-2011-1229
CWE-476Published: April 13, 2011· Updated: Jun 16, 2026
7.2
CVSS v3.1
Official 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."
Technical Analysis
CVE-2011-1229 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:L/AC:L/Au:N/C:C/I:C/A:C
Affected Vendors & Products
avaya29 product(s)
agent accessaura conferencing standard editionbasic call management system reporting desktopcall management server supervisorcallpilotcallvisor asai lancommunication server 1000 telephony managercomputer telephonycontact center expresscustomer interaction expressenterprise managerintegrated management+17
Microsoft6 product(s)
windows 2003 serverwindows 7windows server 2003windows server 2008windows vistawindows xp
Source: NVD CPE · 36 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (22)
→
→
http://osvdb.org/71735Broken Link
→
http://secunia.com/advisories/44156Third Party Advisory
→
http://support.avaya.com/css/P8/documents/100133352Third Party Advisory
→
http://www.securityfocus.com/bid/47229Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id?1025345Third Party Advisory · VDB Entry
→
http://www.us-cert.gov/cas/techalerts/TA11-102A.htmlThird Party Advisory · US Government Resource
→
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034Patch · Vendor Advisory
→
→
→
http://osvdb.org/71735Broken Link
→
http://secunia.com/advisories/44156Third Party Advisory
→
http://support.avaya.com/css/P8/documents/100133352Third Party Advisory
Quick Facts
CVE IDCVE-2011-1229
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-476
CISA KEVNo
Affected2 vendor(s)
PublishedApr 13, 2011
Related CVEs (CWE-476)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2011-1229 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.