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 2...
HighCVSS 8.8
EPSS 78.1%
CISA KEV
added 2025-10-06 · due 2025-10-27
Exploited in the wild
- Published
- Updated
- Exploit status
- Exploited in the wild (confirmed)
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."
CISA Known Exploited Vulnerability
- Date added
- 2025-10-06
- Due date (FCEB)
- 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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft windows 7 | All versions | No fix listed |
| Microsoft windows server 2003 | All versions | No fix listed |
| Microsoft windows server 2008 | All versions | No fix listed |
| Microsoft windows vista | All versions | No fix listed |
| Microsoft windows xp | All versions | No fix listed |
References
- blogs.mcafee.com broken-link
- blogs.technet.com vendor-advisory
- isc.sans.edu third-party-advisory
- 49121 third-party-advisory vendor-advisory
- 49122 third-party-advisory vendor-advisory
- technet.microsoft.com vendor-advisory
- www.securelist.com not-applicable
- 1027039 broken-link vdb-entry
- www.symantec.com not-applicable
- www.symantec.com not-applicable
- TA11-347A third-party-advisory us-government-resource
- TA12-129A third-party-advisory us-government-resource
- TA12-164A third-party-advisory us-government-resource
- www.us-cert.gov us-government-resource
- MS11-087 vendor-advisory
- MS12-034 vendor-advisory
- MS12-039 vendor-advisory
- oval:org.mitre.oval:def:13998 broken-link signature vdb-entry
- oval:org.mitre.oval:def:15290 broken-link signature vdb-entry
- oval:org.mitre.oval:def:15645 broken-link signature vdb-entry
- www.cisa.gov government-resource us-government-resource