CVEvulnerability
CVE-2011-3402
CISA Known Exploited Vulnerability
Microsoft Windows Remote Code Execution Vulnerability — Microsoft Windows
Microsoft Windows Kernel contains an unspecified vulnerability in the TrueType font parsing engine in win32k.sys in the kernel-mode drivers that allows remote attackers to execute arbitrary code via crafted font data in a Word document or web page.
- Added to KEV
- 2025-10-06
- Remediation due
- 2025-10-27
- Ransomware use
- Unknown
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Notes
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-087 ; https://nvd.nist.gov/vuln/detail/CVE-2011-3402
- Status
- Analyzed
- Published
- 2011-11-04
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 9.3 HIGH — AV:N/AC:M/Au:N/C:C/I:C/A:C
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."
Affected configurations
• microsoft windows 7
• microsoft windows server 2003
• microsoft windows server 2008
• microsoft windows vista
• microsoft windows xp
References
- http://blogs.mcafee.com/mcafee-labs/the-day-of-the-golden-jackal-%E2%80%93-further-tales-of-the-stuxnet-files Broken Link
- http://blogs.technet.com/b/msrc/archive/2011/11/03/microsoft-releases-security-advisory-2639658.aspx Vendor Advisory
- http://isc.sans.edu/diary/Duqu+Mitigation/11950 Third Party Advisory
- http://secunia.com/advisories/49121 Vendor Advisory
- http://secunia.com/advisories/49122 Vendor Advisory
- http://technet.microsoft.com/security/advisory/2639658 Vendor Advisory
- http://www.securelist.com/en/blog/208193197/The_Mystery_of_Duqu_Part_Two Not Applicable
- http://www.securitytracker.com/id?1027039 Broken Link
- http://www.symantec.com/connect/w32-duqu_status-updates_installer-zero-day-exploit Not Applicable
- http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/w32_duqu_the_precursor_to_the_next_stuxnet.pdf Not Applicable
- 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 US Government Resource
- 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 Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13998 Broken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15290 Broken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15645 Broken Link
- http://blogs.mcafee.com/mcafee-labs/the-day-of-the-golden-jackal-%E2%80%93-further-tales-of-the-stuxnet-files Broken Link
- http://blogs.technet.com/b/msrc/archive/2011/11/03/microsoft-releases-security-advisory-2639658.aspx Vendor Advisory
- http://isc.sans.edu/diary/Duqu+Mitigation/11950 Third Party Advisory
- http://secunia.com/advisories/49121 Vendor Advisory
- http://secunia.com/advisories/49122 Vendor Advisory
- http://technet.microsoft.com/security/advisory/2639658 Vendor Advisory
- http://www.securelist.com/en/blog/208193197/The_Mystery_of_Duqu_Part_Two Not Applicable
- http://www.securitytracker.com/id?1027039 Broken Link
- http://www.symantec.com/connect/w32-duqu_status-updates_installer-zero-day-exploit Not Applicable
- http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/w32_duqu_the_precursor_to_the_next_stuxnet.pdf Not Applicable
- 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 US Government Resource
- 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 Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13998 Broken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15290 Broken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15645 Broken Link
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-3402 US Government Resource