CVE-2011-3402

HIGH KEV RANSOMWARE

Microsoft Windows - RCE

Title source: llm

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."

References (21)

[Various Sources] http://blogs.mcafee.com/mcafee-labs/the-day-of-the-golden-jackal-%E2%80%93-further-tales-of-the-stuxnet-files

[Various Sources] http://blogs.technet.com/b/msrc/archive/2011/11/03/microsoft-releases-security-advisory-2639658.aspx

[Various Sources] http://isc.sans.edu/diary/Duqu+Mitigation/11950

[Vendor Advisory] http://secunia.com/advisories/49121

[Vendor Advisory] http://secunia.com/advisories/49122

[Vendor Advisory] http://technet.microsoft.com/security/advisory/2639658

[Various Sources] http://www.securelist.com/en/blog/208193197/The_Mystery_of_Duqu_Part_Two

[Third Party Advisory] http://www.symantec.com/connect/w32-duqu_status-updates_installer-zero-day-exploit

[Third Party Advisory] http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/w32_duqu_the_precursor_to_the_next_stuxnet.pdf

[US Government Resource] http://www.us-cert.gov/cas/techalerts/TA11-347A.html

[US Government Resource] http://www.us-cert.gov/cas/techalerts/TA12-129A.html

[US Government Resource] http://www.us-cert.gov/cas/techalerts/TA12-164A.html

[US Government Resource] http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-291-01E.pdf

[Third Party Advisory, VDB Entry] https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13998

[Third Party Advisory, VDB Entry] https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15290

[Third Party Advisory, VDB Entry] https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15645

[Third Party Advisory, US Government Resource] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-3402

[Vendor Advisory] https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-087

[Vendor Advisory] https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-034

[Vendor Advisory] https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039

... and 1 more

Scores

CVSS v3 8.8

EPSS 0.8831

EPSS Percentile 99.5%

Attack Vector NETWORK

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

Details

CISA KEV 2025-10-06

VulnCheck KEV 2011-11-04

InTheWild.io 2020-09-28

ENISA EUVD EUVD-2011-3365

Ransomware Use Confirmed

Status published

Products (5)

microsoft/windows_7 (4 CPE variants)

microsoft/windows_server_2003 (2 CPE variants)

microsoft/windows_server_2008 (5 CPE variants)

microsoft/windows_vista (2 CPE variants)

microsoft/windows_xp (4 CPE variants)

Published Nov 04, 2011

KEV Added Oct 06, 2025

Tracked Since Feb 18, 2026