RCE in Microsoft .Net Framework
CVE-2009-0091
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."
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.258 (97.8th percentile) — read the EPSS interpretation.
Affected products
- Microsoft .Net_framework — versions 1.1, 2.0, 3.5
- Microsoft Windows_2000
- Microsoft Windows_7
- Microsoft Windows_server_2003
- Microsoft Windows_server_2008
- Microsoft Windows_vista
- Microsoft Windows_xp
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (US Government Resource, x_refsource_CERT, third-party-advisory)
- secure@microsoft.com (signature, x_refsource_OVAL, vdb-entry)
- secure@microsoft.com (x_refsource_MS, vendor-advisory)
Frequently asked questions
- What is CVE-2009-0091?
- CVE-2009-0091 is a vulnerability in Microsoft .Net Framework, classified under Code Injection. Published 2009-10-14.
- Is CVE-2009-0091 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.