CVE-2011-3402

Microsoft Windows Remote Code Execution Vulnerability — Microsoft / Windows

Risk tier: Monitored

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, 3.1)
  • EPSS exploitation probability: Not yet available
  • EPSS percentile: Not yet available

CISA KEV status

  • Added to KEV: 2025-10-06
  • Remediation due date: 2025-10-27
  • Known ransomware campaign use: Unknown

References

More HIGH-severity vulnerabilities · All exploited vulnerabilities