CVE-2012-4776

N/A

Published: November 14, 2012 at 12:00 AM UTC

Updated: June 16, 2026 at 11:45 PM UTC

8 products affected across 1 vendor.NET FrameworkWindows Server 2012Windows Server 2008

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Severity

N/A

Exploit prediction

EPSS 25%

Description

The Web Proxy Auto-Discovery (WPAD) functionality in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not validate configuration data that is returned during acquisition of proxy settings, which allows remote attackers to execute arbitrary JavaScript code by providing crafted data during execution of (1) an XAML browser application (aka XBAP) or (2) a .NET Framework application, aka "Web Proxy Auto-Discovery Vulnerability."

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

.NET Framework · Microsoft

95%

2.0 sp2 3.5 3.5.1 4.0 4.5

microsoft-windows-7 (environment) · microsoft-windows-8 (environment) · microsoft-windows-server-2003 (environment) · microsoft-windows-server-2008 (environment) · microsoft-windows-server-2012 (environment) · microsoft-windows-vista (environment) · microsoft-windows-xp (environment)

Windows 7 · Microsoftdevice

80%

All versions

Windows 8 · Microsoftdevice

80%

All versions

Windows Server 2003 · Microsoftdevice

80%

All versions

Windows Server 2008 · Microsoftdevice

80%

All versions