CVE-2011-3402

8.8 HIGH CISA KEV - Actively Exploited
Published: November 04, 2011 Modified: October 22, 2025
View on NVD

Description

Unspecified vulnerability in the TrueType font parsing engine in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote attackers to execute arbitrary code via crafted font data in a Word document or web page, as exploited in the wild in November 2011 by Duqu, aka "TrueType Font Parsing Vulnerability."

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://blogs.mcafee.com/mcafee-labs/the-day-of-the-golden-jackal-%E2%80%93-further-tales-of-the-stuxnet-files
Source: secure@microsoft.com
http://blogs.technet.com/b/msrc/archive/2011/11/03/microsoft-releases-security-advisory-2639658.aspx
Source: secure@microsoft.com
http://isc.sans.edu/diary/Duqu+Mitigation/11950
Source: secure@microsoft.com
http://secunia.com/advisories/49121
Source: secure@microsoft.com
Vendor Advisory
http://secunia.com/advisories/49122
Source: secure@microsoft.com
Vendor Advisory
http://technet.microsoft.com/security/advisory/2639658
Source: secure@microsoft.com
Vendor Advisory
http://www.securelist.com/en/blog/208193197/The_Mystery_of_Duqu_Part_Two
Source: secure@microsoft.com
http://www.securitytracker.com/id?1027039
Source: secure@microsoft.com
http://www.symantec.com/connect/w32-duqu_status-updates_installer-zero-day-exploit
Source: secure@microsoft.com
http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/w32_duqu_the_precursor_to_the_next_stuxnet.pdf
Source: secure@microsoft.com
http://www.us-cert.gov/cas/techalerts/TA11-347A.html
Source: secure@microsoft.com
US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-129A.html
Source: secure@microsoft.com
US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-164A.html
Source: secure@microsoft.com
US Government Resource
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-291-01E.pdf
Source: secure@microsoft.com
US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-087
Source: secure@microsoft.com
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-034
Source: secure@microsoft.com
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039
Source: secure@microsoft.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13998
Source: secure@microsoft.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15290
Source: secure@microsoft.com
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15645
Source: secure@microsoft.com
http://blogs.mcafee.com/mcafee-labs/the-day-of-the-golden-jackal-%E2%80%93-further-tales-of-the-stuxnet-files
Source: af854a3a-2127-422b-91ae-364da2661108
http://blogs.technet.com/b/msrc/archive/2011/11/03/microsoft-releases-security-advisory-2639658.aspx
Source: af854a3a-2127-422b-91ae-364da2661108
http://isc.sans.edu/diary/Duqu+Mitigation/11950
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/49121
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://secunia.com/advisories/49122
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://technet.microsoft.com/security/advisory/2639658
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.securelist.com/en/blog/208193197/The_Mystery_of_Duqu_Part_Two
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id?1027039
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.symantec.com/connect/w32-duqu_status-updates_installer-zero-day-exploit
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/w32_duqu_the_precursor_to_the_next_stuxnet.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.us-cert.gov/cas/techalerts/TA11-347A.html
Source: af854a3a-2127-422b-91ae-364da2661108
US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-129A.html
Source: af854a3a-2127-422b-91ae-364da2661108
US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-164A.html
Source: af854a3a-2127-422b-91ae-364da2661108
US Government Resource
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-291-01E.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-087
Source: af854a3a-2127-422b-91ae-364da2661108
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-034
Source: af854a3a-2127-422b-91ae-364da2661108
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039
Source: af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13998
Source: af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15290
Source: af854a3a-2127-422b-91ae-364da2661108
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15645
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-3402
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

41 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.8 / 10.0
EPSS (Exploit Probability)
89.2%
100th percentile
Exploitation Status
Actively Exploited
Remediation due: 2025-10-27

Affected Vendors

microsoft