8.8High KEV

CVE-2011-3402Microsoft Windows Remote Code Execution Vulnerability

microsoft windows 7; microsoft windows server 2003; microsoft windows server 2008; microsoft windows vista Published: (15 years ago)

Known exploited — Microsoft Windows Remote Code Execution Vulnerability

CISA confirmed this vulnerability is used in real attacks on 06.10.2025. Remediation deadline for US federal agencies: 27.10.2025.

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. https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-087 ; https://nvd.nist.gov/vuln/detail/CVE-2011-3402

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."

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
microsoft windows 7 —
microsoft windows server 2003 —
microsoft windows server 2008 —
microsoft windows vista —
microsoft windows xp —

References and patches

CPE matches (NVD) (9)

  • cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:*
  • cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*
  • cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*