Fixed Intel

CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.

Remediation Deadline: Oct 27, 2025

CVE-2011-3402

High
EPSS 90.3%CISA KEV
Microsoft/Windows

Description

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.

EPSS — Exploit Probability

90.3%

Higher than 99.6% of all CVEs

Required Action

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

Risk Assessment

HIGH
In CISA KEV
High EPSS

Details

Severity
High
EPSS
90.3%
CISA KEV
Yes
Ransomware
Unknown
Articles
0

Timeline

Published

Oct 6, 2025

Added to KEV

Oct 6, 2025

Remediation Due

Oct 27, 2025

Affected Product

Microsoft

Windows

View all Microsoft CVEs