# CVE-2011-3402

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."

- Page: https://www.vulneraibility.com/cve/CVE-2011-3402
- CVSS: 8.8
- Known exploited: yes, in CISA KEV since 2025-10-06; CISA due date 2025-10-27
- EPSS: 78.14%
- Detection templates only, no public exploit found: 1 Metasploit module
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-10-04)
- Published: 2011-11-04

## Affected

- microsoft:windows_7
- microsoft:windows_server_2003
- microsoft:windows_server_2008
- microsoft:windows_vista
- microsoft:windows_xp

## References

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

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.