CVE-2015-1673: Microsoft .NET Framework

High severity, CVSS 9.3. EPSS: 16.9% chance of exploitation in the next 30 days.

The Windows Forms (aka WinForms) libraries in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 allow user-assisted remote attackers to execute arbitrary code via a crafted partial-trust application, aka "Windows Forms Elevation of Privilege Vulnerability."

Affected products

• Microsoft .NET Framework: version 1.1 only; version 2.0 only; version 3.5 only; version 3.5.1 only; version 4.0 only; version 4.5 only; …

Published 2015-05-13. Last modified 2026-06-17.