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."

CVSS v3.1 NVD

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS

78.14% chance of exploitation in the next 30 days, 100th percentile

CISA KEV

added 2025-10-06

Published

2011-11-04

Updated

2025-10-22

Proof-of-concept exploits (1)

• http://www.symantec.com/connect/w32-duqu_status-updates_installer-zero-day-exploit

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/post/windows/gather/forensics/duqu_check…

Security advisories

• http://blogs.technet.com/b/msrc/archive/2011/11/03/microsoft-releases-security-advisory-2…
• http://secunia.com/advisories/49121
• http://secunia.com/advisories/49122
• http://technet.microsoft.com/security/advisory/2639658
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-087
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-034
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039
• http://isc.sans.edu/diary/Duqu+Mitigation/11950

References

• CVE Record
• NVD entry