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."
Key facts
- CVSS score
- 8.8 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- EPSS score
- 78.1% (100th percentile)
- In CISA KEV
- Yes, added October 6, 2025
- In EU EUVD
- Yes (EUVD-2011-3365)
- Published
- November 4, 2011
- NVD last modified
- June 16, 2026
- Status
- Analyzed
CISA Known Exploited Vulnerability
Microsoft Windows Remote Code Execution Vulnerability
Added to the KEV catalog on October 6, 2025; federal remediation due October 27, 2025.
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-3365 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.
View on the EU Vulnerability DatabaseAffected products
- microsoft / windows 7
- microsoft / windows 7
- microsoft / windows server 2003
- microsoft / windows server 2008
- microsoft / windows server 2008
- microsoft / windows server 2008
- microsoft / windows vista
- microsoft / windows xp
- microsoft / windows xp
Certified products that may be affected
13 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Windows 7 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1332 - historical
- Microsoft Windows 7 Kernel Mode Cryptographic Primitives Library (cng.sys) - Microsoft Corporation - FIPS 140 1328 - historical
- Windows Vista Enhanced Cryptographic Provider (RSAENH) - Microsoft Corporation - FIPS 140 1002 - historical
- Windows Vista Enhanced DSS and Diffie-Hellman Cryptographic Provider (DSSENH) - Microsoft Corporation - FIPS 140 1003 - historical
- Windows XP Enhanced Cryptographic Provider (RSAENH) - Microsoft Corporation - FIPS 140 989 - historical
See all 13 in the Security Certifications Explorer.
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)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-3402(US Government Resource)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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