Microsoft April 2021 Patch Tuesday fixes 108 flaws, 5 zero-days

Tag CVE ID CVE Title Severity Azure AD Web Sign-in CVE-2021-27092 Azure AD Web Sign-in Security Feature Bypass Vulnerability Important Azure DevOps CVE-2021-28459 Azure DevOps Server Spoofing Vulnerability Important Azure DevOps CVE-2021-27067 Azure DevOps Server and Team Foundation Server Information Disclosure Vulnerability Important Azure Sphere CVE-2021-28460 Azure Sphere Unsigned Code Execution Vulnerability Critical Microsoft Edge (Chromium-based) CVE-2021-21199 Chromium: CVE-2021-21199 Use Use after free in Aura Unknown Microsoft Edge (Chromium-based) CVE-2021-21194 Chromium: CVE-2021-21194 Use after free in screen capture Unknown Microsoft Edge (Chromium-based) CVE-2021-21197 Chromium: CVE-2021-21197 Heap buffer overflow in TabStrip Unknown Microsoft Edge (Chromium-based) CVE-2021-21198 Chromium: CVE-2021-21198 Out of bounds read in IPC Unknown Microsoft Edge (Chromium-based) CVE-2021-21195 Chromium: CVE-2021-21195 Use after free in V8 Unknown Microsoft Edge (Chromium-based) CVE-2021-21196 Chromium: CVE-2021-21196 Heap buffer overflow in TabStrip Unknown Microsoft Exchange Server CVE-2021-28480 Microsoft Exchange Server Remote Code Execution Vulnerability Critical Microsoft Exchange Server CVE-2021-28482 Microsoft Exchange Server Remote Code Execution Vulnerability Critical Microsoft Exchange Server CVE-2021-28483 Microsoft Exchange Server Remote Code Execution Vulnerability Critical Microsoft Exchange Server CVE-2021-28481 Microsoft Exchange Server Remote Code Execution Vulnerability Critical Microsoft Graphics Component CVE-2021-28350 Windows GDI+ Remote Code Execution Vulnerability Important Microsoft Graphics Component CVE-2021-28318 Windows GDI+ Information Disclosure Vulnerability Important Microsoft Graphics Component CVE-2021-28348 Windows GDI+ Remote Code Execution Vulnerability Important Microsoft Graphics Component CVE-2021-28349 Windows GDI+ Remote Code Execution Vulnerability Important Microsoft Internet Messaging API CVE-2021-27089 Microsoft Internet Messaging API Remote Code Execution Vulnerability Important Microsoft NTFS CVE-2021-28312 Windows NTFS Denial of Service Vulnerability Moderate Microsoft NTFS CVE-2021-27096 NTFS Elevation of Privilege Vulnerability Important Microsoft Office Excel CVE-2021-28456 Microsoft Excel Information Disclosure Vulnerability Important Microsoft Office Excel CVE-2021-28451 Microsoft Excel Remote Code Execution Vulnerability Important Microsoft Office Excel CVE-2021-28454 Microsoft Excel Remote Code Execution Vulnerability Important Microsoft Office Excel CVE-2021-28449 Microsoft Office Remote Code Execution Vulnerability Important Microsoft Office Outlook CVE-2021-28452 Microsoft Outlook Memory Corruption Vulnerability Important Microsoft Office SharePoint CVE-2021-28450 Microsoft SharePoint Denial of Service Update Important Microsoft Office Word CVE-2021-28453 Microsoft Word Remote Code Execution Vulnerability Important Microsoft Windows Codecs Library CVE-2021-28464 VP9 Video Extensions Remote Code Execution Vulnerability Important Microsoft Windows Codecs Library CVE-2021-28466 Raw Image Extension Remote Code Execution Vulnerability Important Microsoft Windows Codecs Library CVE-2021-27079 Windows Media Photo Codec Information Disclosure Vulnerability Important Microsoft Windows Codecs Library CVE-2021-28468 Raw Image Extension Remote Code Execution Vulnerability Important Microsoft Windows Codecs Library CVE-2021-28317 Microsoft Windows Codecs Library Information Disclosure Vulnerability Important Microsoft Windows DNS CVE-2021-28323 Windows DNS Information Disclosure Vulnerability Important Microsoft Windows DNS CVE-2021-28328 Windows DNS Information Disclosure Vulnerability Important Microsoft Windows Speech CVE-2021-28351 Windows Speech Runtime Elevation of Privilege Vulnerability Important Microsoft Windows Speech CVE-2021-28436 Windows Speech Runtime Elevation of Privilege Vulnerability Important Microsoft Windows Speech CVE-2021-28347 Windows Speech Runtime Elevation of Privilege Vulnerability Important Open Source Software CVE-2021-28458 Azure ms-rest-nodeauth Library Elevation of Privilege Vulnerability Important Role: Hyper-V CVE-2021-28441 Windows Hyper-V Information Disclosure Vulnerability Important Role: Hyper-V CVE-2021-28314 Windows Hyper-V Elevation of Privilege Vulnerability Important Role: Hyper-V CVE-2021-28444 Windows Hyper-V Security Feature Bypass Vulnerability Important Role: Hyper-V CVE-2021-26416 Windows Hyper-V Denial of Service Vulnerability Important Visual Studio CVE-2021-27064 Visual Studio Installer Elevation of Privilege Vulnerability Important Visual Studio Code CVE-2021-28457 Visual Studio Code Remote Code Execution Vulnerability Important Visual Studio Code CVE-2021-28471 Remote Development Extension for Visual Studio Code Remote Code Execution Vulnerability Important Visual Studio Code CVE-2021-28475 Visual Studio Code Remote Code Execution Vulnerability Important Visual Studio Code CVE-2021-28473 Visual Studio Code Remote Code Execution Vulnerability Important Visual Studio Code CVE-2021-28477 Visual Studio Code Remote Code Execution Vulnerability Important Visual Studio Code CVE-2021-28469 Visual Studio Code Remote Code Execution Vulnerability Important Visual Studio Code – GitHub Pull Requests and Issues Extension CVE-2021-28470 Visual Studio Code GitHub Pull Requests and Issues Extension Remote Code Execution Vulnerability Important Visual Studio Code – Kubernetes Tools CVE-2021-28448 Visual Studio Code Kubernetes Tools Remote Code Execution Vulnerability Important Visual Studio Code – Maven for Java Extension CVE-2021-28472 Visual Studio Code Maven for Java Extension Remote Code Execution Vulnerability Important Windows Application Compatibility Cache CVE-2021-28311 Windows Application Compatibility Cache Denial of Service Vulnerability Important Windows AppX Deployment Extensions CVE-2021-28326 Windows AppX Deployment Server Denial of Service Vulnerability Important Windows Console Driver CVE-2021-28438 Windows Console Driver Denial of Service Vulnerability Important Windows Console Driver CVE-2021-28443 Windows Console Driver Denial of Service Vulnerability Important Windows Diagnostic Hub CVE-2021-28313 Diagnostics Hub Standard Collector Service Elevation of Privilege Vulnerability Important Windows Diagnostic Hub CVE-2021-28321 Diagnostics Hub Standard Collector Service Elevation of Privilege Vulnerability Important Windows Diagnostic Hub CVE-2021-28322 Diagnostics Hub Standard Collector Service Elevation of Privilege Vulnerability Important Windows Early Launch Antimalware Driver CVE-2021-28447 Windows Early Launch Antimalware Driver Security Feature Bypass Vulnerability Important Windows ELAM CVE-2021-27094 Windows Early Launch Antimalware Driver Security Feature Bypass Vulnerability Important Windows Event Tracing CVE-2021-27088 Windows Event Tracing Elevation of Privilege Vulnerability Important Windows Event Tracing CVE-2021-28435 Windows Event Tracing Information Disclosure Vulnerability Important Windows Installer CVE-2021-26413 Windows Installer Spoofing Vulnerability Important Windows Installer CVE-2021-28440 Windows Installer Elevation of Privilege Vulnerability Important Windows Installer CVE-2021-28437 Windows Installer Information Disclosure Vulnerability Important Windows Installer CVE-2021-26415 Windows Installer Elevation of Privilege Vulnerability Important Windows Kernel CVE-2021-27093 Windows Kernel Information Disclosure Vulnerability Important Windows Kernel CVE-2021-28309 Windows Kernel Information Disclosure Vulnerability Important Windows Media Player CVE-2021-28315 Windows Media Video Decoder Remote Code Execution Vulnerability Critical Windows Media Player CVE-2021-27095 Windows Media Video Decoder Remote Code Execution Vulnerability Critical Windows Network File System CVE-2021-28445 Windows Network File System Remote Code Execution Vulnerability Important Windows Overlay Filter CVE-2021-26417 Windows Overlay Filter Information Disclosure Vulnerability Important Windows Portmapping CVE-2021-28446 Windows Portmapping Information Disclosure Vulnerability Important Windows Registry CVE-2021-27091 RPC Endpoint Mapper Service Elevation of Privilege Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28336 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28335 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28334 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28338 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28434 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28337 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28333 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28327 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28329 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28330 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28332 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28331 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28354 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28339 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Remote Procedure Call Runtime CVE-2021-28355 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28353 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28352 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28357 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28358 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28356 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28346 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28342 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28340 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28341 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28345 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28344 Remote Procedure Call Runtime Remote Code Execution Vulnerability Important Windows Remote Procedure Call Runtime CVE-2021-28343 Remote Procedure Call Runtime Remote Code Execution Vulnerability Critical Windows Resource Manager CVE-2021-28320 Windows Resource Manager PSM Service Extension Elevation of Privilege Vulnerability Important Windows Secure Kernel Mode CVE-2021-27090 Windows Secure Kernel Mode Elevation of Privilege Vulnerability Important Windows Services and Controller App CVE-2021-27086 Windows Services and Controller App Elevation of Privilege Vulnerability Important Windows SMB Server CVE-2021-28325 Windows SMB Information Disclosure Vulnerability Important Windows SMB Server CVE-2021-28324 Windows SMB Information Disclosure Vulnerability Important Windows TCP/IP CVE-2021-28439 Windows TCP/IP Driver Denial of Service Vulnerability Important Windows TCP/IP CVE-2021-28442 Windows TCP/IP Information Disclosure Vulnerability Important Windows TCP/IP CVE-2021-28319 Windows TCP/IP Driver Denial of Service Vulnerability Important Windows Win32K CVE-2021-27072 Win32k Elevation of Privilege Vulnerability Important Windows Win32K CVE-2021-28310 Win32k Elevation of Privilege Vulnerability Important Windows WLAN Auto Config Service CVE-2021-28316 Windows WLAN AutoConfig Service Security Feature Bypass Vulnerability Important