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CVE-2011-1234

24
FAUCET Score

CVE-2011-1234 is a use-after-free vulnerability in the win32k.sys kernel-mode driver affecting multiple versions of Microsoft Windows, including XP, Vista, and Server 2003/2008/R2, and Windows 7. This flaw allows a local attacker to gain elevated privileges by running a specially crafted application. With a CVSS score of 7.2, it presents a high severity risk due to its local attack vector and complete compromise of confidentiality, integrity, and availability. While it has a low EPSS score and no known public exploits or active exploitation, its presence in a core system driver warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:sp1:x64:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:sp1:x86:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.44%
Probability of exploitation in next 30 days
EPSS Percentile
70.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0144 is in the 87th percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blogs.technet.com / b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspx
osvdb.org / 71749
docs.microsoft.com / en-us/security-updates/securitybulletins/2011/ms11-034
secunia.com / advisories/44156
exchange.xforce.ibmcloud.com / vulnerabilities/66416
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12221
support.avaya.com / css/P8/documents/100133352
securityfocus.com / bid/47211
securitytracker.com / id
us-cert.gov / cas/techalerts/TA11-102A.html
US Government Resource
vupen.com / english/advisories/2011/0952