CVE-2011-3402 KEV
8.8
HIGH · CVSS 3.1 · EPSS 78.1% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2025-10-27.
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."
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 78.14% — more likely to be exploited than 100% of all CVEs |
| On CISA KEV | yes — remediate by 2025-10-27 |
| Public exploit | none known |
| Published | 2011-11-04 |
| Last modified | 2026-06-16 |
CISA KEV
| Name | Microsoft Windows Remote Code Execution Vulnerability |
|---|---|
| Added | 2025-10-06 |
| Due | 2025-10-27 |
| Vendor / product | Microsoft / Windows |
| Ransomware use | none reported |
Affected (5)
| Vendor | Product |
|---|---|
| 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
- http://blogs.technet.com/b/msrc/archive/2011/11/03/microsoft-releases-security-advisory-2639658.aspx
- http://isc.sans.edu/diary/Duqu+Mitigation/11950
- http://secunia.com/advisories/49121
- http://secunia.com/advisories/49122
- http://technet.microsoft.com/security/advisory/2639658
- http://www.securelist.com/en/blog/208193197/The_Mystery_of_Duqu_Part_Two
- http://www.securitytracker.com/id?1027039
- http://www.symantec.com/connect/w32-duqu_status-updates_installer-zero-day-exploit
- http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/w32_duqu_the_precursor_to_the_next_stuxnet.pdf
- http://www.us-cert.gov/cas/techalerts/TA11-347A.html
- http://www.us-cert.gov/cas/techalerts/TA12-129A.html
- http://www.us-cert.gov/cas/techalerts/TA12-164A.html
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-291-01E.pdf
- 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
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13998
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15290
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15645
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