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CVE-2011-1883

23
FAUCET Score

CVE-2011-1883 is a use-after-free vulnerability in the win32k.sys kernel-mode driver affecting multiple versions of Microsoft Windows, including XP, Vista, Server 2003, Server 2008, and Windows 7. This flaw allows a local attacker to gain elevated privileges by executing a specially crafted application. With a CVSS score of 7.2, it is considered highly severe due to its low attack complexity and complete compromise of confidentiality, integrity, and availability. There is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this vulnerability.

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
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0140 is in the 86th percentile among its peer group of 3,235 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

osvdb.org / 73783
docs.microsoft.com / en-us/security-updates/securitybulletins/2011/ms11-054
secunia.com / advisories/45186
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12721
support.avaya.com / css/P8/documents/100144947
securityfocus.com / bid/48595
securitytracker.com / id
us-cert.gov / cas/techalerts/TA11-193A.html
US Government Resource