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Security advisories & CVEs
954 advisories across 32 monitored vendors.
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High [CVE-2026-50491] Code Integrity DLL (ci.dll) Elevation of Privilege Vulnerability
Code Integrity DLL (ci.dll) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-50501] Windows Resilient File System (ReFS) Remote Code Execution Vulnerability
Windows Resilient File System (ReFS) Remote Code Execution Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50509] Wireless Wide Area Network Service (WwanSvc) Elevation of Privilege Vulnerability
Wireless Wide Area Network Service (WwanSvc) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2025; Windows Server 2016.
High [CVE-2026-50527] .NET Framework Denial of Service Vulnerability
.NET Framework Denial of Service Vulnerability Affected products named by the advisory: Microsoft.NET Framework 4.8 on Windows Server 2016; Microsoft.NET Framework 4.8 on Windows Server 2012; Microsoft.NET Framework 4.8 on Windows Server 2012 R2; Microsoft.NET Framework 3.5 AND 4.8 on Windows Server 2019; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.
High [CVE-2026-50646] .NET Framework Remote Code Execution Vulnerability
.NET Framework Remote Code Execution Vulnerability Affected products named by the advisory: Microsoft.NET Framework 4.8 on Windows Server 2012; Microsoft.NET Framework 4.8 on Windows Server 2016; Microsoft.NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft.NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 4.8 on Windows Server 2012 R2; Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022.
High [CVE-2026-50647] Active Directory Federation Server Denial of Service Vulnerability
Active Directory Federation Server Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 4 more. Affected products named by the advisory: Windows Server 2012 R2; Microsoft.NET Framework 4.8 on Windows Server 2016; Microsoft.NET Framework 4.8 on Windows Server 2012.
High [CVE-2026-50650] .NET Framework Elevation of Privilege Vulnerability
.NET Framework Elevation of Privilege Vulnerability Affected products named by the advisory: Microsoft.NET Framework 4.8 on Windows Server 2012; Microsoft.NET Framework 4.8 on Windows Server 2012 R2; Microsoft.NET Framework 4.8 on Windows Server 2016; Microsoft.NET Framework 3.5 AND 4.8 on Windows Server 2019; and 4 more. Affected products named by the advisory: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019; Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012.
High [CVE-2026-50666] Windows Remote Access Elevation of Privilege Vulnerability
Windows Remote Access Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 1 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-50669] Windows Telephony Server Elevation of Privilege Vulnerability
Windows Telephony Server Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-50672] Windows NTFS Elevation of Privilege Vulnerability
Windows NTFS Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-54115] Windows Message Queuing (MSMQ) Elevation of Privilege Vulnerability
Windows Message Queuing (MSMQ) Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-50679] Windows Search Service Elevation of Privilege Vulnerability
Windows Search Service Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-54121] Active Directory Certificate Services Elevation of Privilege Vulnerability
Active Directory Certificate Services Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-50682] Active Directory Denial of Service Vulnerability
Active Directory Denial of Service Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-50686] Windows OLE Remote Code Execution Vulnerability
Windows OLE Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 1 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-54128] Windows DHCP Client Remote Code Execution Vulnerability
Windows DHCP Client Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-50359] Microsoft XML Core Services Elevation of Privilege Vulnerability
Microsoft XML Core Services Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-56173] Windows WebView Elevation of Privilege Vulnerability
Windows WebView Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-56186] Windows Secure Channel Information Disclosure Vulnerability
Windows Secure Channel Information Disclosure Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.
High [CVE-2026-56189] Microsoft Windows Media Foundation Remote Code Execution Vulnerability
Microsoft Windows Media Foundation Remote Code Execution Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016; and 2 more. Affected products named by the advisory: Windows Server 2012 R2.