Is CVE-2011-1229 being actively exploited?

CVE-2011-1229 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-1229?

CVE-2011-1229 has a CVSS 2.0 base score of 7.2 (HIGH).

CVE-2011-1229

HIGH · CVSS 7.2EPSS 1.5%EU EUVD

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."

Key facts

CVSS score: 7.2 (v2.0)
Severity: HIGH
CVSS vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-476
EPSS score: 1.5% (73th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-1237)
Published: April 13, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-1237 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

avaya / agent access
avaya / aura conferencing standard edition
avaya / basic call management system reporting desktop
avaya / call management server supervisor
avaya / callpilot
avaya / callvisor asai lan
avaya / communication server 1000 telephony manager
avaya / computer telephony
avaya / contact center express
avaya / customer interaction express
avaya / enterprise manager
avaya / integrated management
avaya / interaction center
avaya / ip agent
avaya / ip softphone
avaya / meeting exchange
avaya / messaging application server
avaya / network reporting
avaya / octelaccess server
avaya / octeldesigner
avaya / operational analyst
avaya / outbound contact management
avaya / speech access
avaya / unified communication center
avaya / unified messenger
avaya / visual messenger
avaya / visual vector client
avaya / vpnmanager console
avaya / web messenger
microsoft / windows 2003 server
microsoft / windows 7
microsoft / windows 7
microsoft / windows server 2003
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows vista
microsoft / windows vista
microsoft / windows vista
microsoft / windows vista
microsoft / windows xp
microsoft / windows xp

Certified products that may be affected

28 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Microsoft Windows Server 2008 R2 Hyper-V Release 6.1.7600 - Microsoft Corporation - Common Criteria BSI-DSZ-CC-0755-2012 - archived
Microsoft Windows 7, Microsoft Windows Server 2008 R2 - Microsoft Corporation - Common Criteria CCEVS-VR-10390-2010 - archived
Windows 7 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1332 - historical
Windows Server 2008 R2 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1339 - historical
Windows Server 2008 R2 Enhanced Cryptographic Provider (RSAENH) - Microsoft Corporation - FIPS 140 1337 - historical

See all 28 in the Security Certifications Explorer.

References

http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspx(Vendor Advisory)
http://osvdb.org/71735(Broken Link)
http://secunia.com/advisories/44156(Third Party Advisory)
http://support.avaya.com/css/P8/documents/100133352(Third Party Advisory)
http://www.securityfocus.com/bid/47229(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id?1025345(Third Party Advisory, VDB Entry)
http://www.us-cert.gov/cas/techalerts/TA11-102A.html(Third Party Advisory, US Government Resource)
http://www.vupen.com/english/advisories/2011/0952(Broken Link)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034(Patch, Vendor Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/66411(VDB Entry)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12503(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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