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Case File

CVE-2009-0091

HIGH · CVSS 9.3 EPSS 25.81%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-10-14 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2009-0091
Severity
HIGH
CVSS
9.3
EPSS
25.81%
Microsoft

Original NVD Description

Microsoft .NET Framework 2.0, 2.0 SP1, and 3.5 does not properly enforce a certain type-equality constraint in .NET verifiable code, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka "Microsoft .NET Framework Type Verification Vulnerability."