CVE-2019-0545

CVE-2019-0545 is an information disclosure vulnerability in .NET Framework and .NET Core that allows attackers to bypass Cross-origin Resource Sharing (CORS) configurations. This affects numerous versions of Microsoft .NET Framework and .NET Core 2.1 and 2.2. The vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity, no user interaction required, and a high impact on confidentiality. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability received some community discussion and media coverage during its disclosure in January 2019.