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."
CVE-2012-4776 is a security vulnerability that . Impacting 8 products from microsoft, from microsoft, from microsoft and 5 others, organizations running these solutions should prioritize assessment and patching.
Documented in 2012, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.
2012-11-14T00:55:01.747
2025-04-11T00:51:21.963
Deferred
CVSSv2: 9.3 (HIGH)
AV:N/AC:M/Au:N/C:C/I:C/A:C
8.6
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | microsoft | .net_framework | 2.0 | Yes |
| Operating System | microsoft | windows_server_2003 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_vista | * | No |
| Operating System | microsoft | windows_xp | * | No |
| Operating System | microsoft | windows_xp | - | No |
| Application | microsoft | .net_framework | 3.5.1 | Yes |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Application | microsoft | .net_framework | 4.0 | Yes |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_server_2003 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_vista | * | No |
| Operating System | microsoft | windows_xp | * | No |
| Operating System | microsoft | windows_xp | - | No |
| Application | microsoft | .net_framework | 3.5 | Yes |
| Operating System | microsoft | windows_8 | - | No |
| Operating System | microsoft | windows_8 | - | No |
| Operating System | microsoft | windows_server_2012 | - | No |
| Application | microsoft | .net_framework | 4.5 | Yes |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_7 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_server_2008 | * | No |
| Operating System | microsoft | windows_vista | * | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.