High severity · published Nov 4, 2011
CVE-2011-3402
Microsoft Windows Remote Code Execution Vulnerability
In wildKEV
8.8
CVSS
78.1%
EPSS
Yes
On KEV
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."
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)78.1% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Oct 6, 2025
Federal remediation dueOct 27, 2025
Ransomware campaign useNot known
Affected products
Which versions
WI
Windows · Microsoft
All versions, or not specified · source: KEV
W7
Windows 7 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 2003 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 2008 · Microsoft
All versions, or not specified · source: NVD
WV
Windows Vista · Microsoft
All versions, or not specified · source: NVD
WX
Windows XP · Microsoft
All versions, or not specified · source: NVD
In the news
VulnerabilityHigh
[CISA KEV] CVE-2011-3402: Microsoft Windows - Microsoft Windows Remote Code Execution Vulnerability
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.
WIWindowsCVE-2011-3402
Oct 6, 2025·CISA KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-3402
CVE.org
https://www.cve.org/CVERecord?id=CVE-2011-3402
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
third-party-advisory
http://secunia.com/advisories/49121
vdb-entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15645
third-party-advisory
http://www.us-cert.gov/cas/techalerts/TA12-164A.html
x_refsource_MISC
http://blogs.mcafee.com/mcafee-labs/the-day-of-the-golden-jackal-%E2%80%93-further-tales-of-the-stuxnet-files
vdb-entry
http://www.securitytracker.com/id?1027039
third-party-advisory
http://secunia.com/advisories/49122
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