Microsoft Server Security Advisories & CVEs
1358 advisories tracked · Microsoft Security Update Guide (MSRC) · direct feeds checked every minute; rate-limited backstops use a safe source cadence
Android app · Google Play
Monitor MS Server CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Check if your MS Server device is affected
Pick your product and enter the exact software release it runs. We match it against the affected/fixed versions in MS Server's recent advisories.
Official source
Microsoft Security Update Guide (MSRC)
Polled via the official MSRC Security Update Guide RSS feed (api.msrc.microsoft.com, no credentials required), scoped to SERVER products only — Windows Server, Exchange, SQL Server, SharePoint, Hyper-V and companion server roles. Client-only CVEs (Edge, Office apps, consumer Windows) are filtered out via the monthly CVRF document's affected-product list.
Latest MS Server advisories
High [CVE-2026-50363] Windows Push Notifications Elevation of Privilege Vulnerability
Windows Push Notifications 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-2026-50392] Windows Secure Kernel Mode Elevation of Privilege Vulnerability
Windows Secure Kernel Mode Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50304] Windows Active Directory Federation Services Denial of Service Vulnerability
Windows Active Directory Federation Services 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-2026-50328] Windows Server Update Service (WSUS) Tampering Vulnerability
Windows Server Update Service (WSUS) Tampering 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-2026-50306] Windows TCP/IP Elevation of Privilege Vulnerability
Windows TCP/IP 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-2026-50360] Windows SMB Server Elevation of Privilege Vulnerability
Windows SMB Server Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2022; Windows Server 2025.
High [CVE-2026-50337] Windows Notification Elevation of Privilege Vulnerability
Windows Notification Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-50400] Windows App Package Installer Elevation of Privilege Vulnerability
Windows App Package Installer 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-2026-50368] Windows Active Directory Federation Services Denial of Service Vulnerability
Windows Active Directory Federation Services 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-2026-50307] Windows TCP/IP Elevation of Privilege Vulnerability
Windows TCP/IP Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-50326] Windows Unified Consent System Elevation of Privilege Vulnerability
Windows Unified Consent System Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50327] Windows Media Remote Code Execution Vulnerability
Windows Media Remote Code Execution Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50331] Windows Application Model Core API Elevation of Privilege Vulnerability
Windows Application Model Core API Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025; Windows Server 2016.
High [CVE-2026-50343] Microsoft Install Service Elevation of Privilege Vulnerability
Microsoft Install Service Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-50347] Windows Data.dll Remote Code Execution Vulnerability
Windows Data.dll 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-2026-50425] Windows Internal System User Profile Elevation of Privilege Vulnerability
Windows Internal System User Profile Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50315] Windows Image Acquisition Elevation of Privilege Vulnerability
Windows Image Acquisition Elevation of Privilege Vulnerability Affected product named by the advisory: Windows Server 2025.
High [CVE-2026-50330] Windows Remote Desktop Client Elevation of Privilege Vulnerability
Windows Remote Desktop Client 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-2026-50452] Windows Runtime Elevation of Privilege Vulnerability
Windows Runtime Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
High [CVE-2026-50335] Windows Operating Systems Elevation of Privilege Vulnerability
Windows Operating Systems Elevation of Privilege Vulnerability Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.