微软官方发布了年04月的安全更新。本月更新公布了个漏洞，包含47个远程执行代码漏洞、55个特权提升漏洞、13个信息泄露漏洞、9个拒绝服务漏洞以及4个身份假冒漏洞，其中10个漏洞级别为“Critical”（高危），个为“Important”（严重）。建议用户及时使用火绒安全软件（个人/企业）功能更新补丁。
涉及组件
.NETFramework
ActiveDirectoryDomainServices
AzureSDK
AzureSiteRecovery
LDAP-LIGHTWEIGHTDIRECTORYACCESSPROTOCOL
MicrosoftBluetoothdriver
MicrosoftDynamics
MicrosoftEdge(basedonChromium)
MicrosoftGraphicsComponent
MicrosoftLocalSecurityAuthenticationServer(lsasrv)
MicrosoftOfficeExcel
MicrosoftOfficeSharePoint
MicrosoftWindowsALPC
MicrosoftWindowsCodecLibrary
MicrosoftWindowsMediaFoundation
PowerBI
ROLE:DNSSERVER
Role:WindowsHyper-V
SkypeforBusiness
VisualStudio
VisualStudioCode
WindowsaccessibilitydriverforWinSock
WindowsStore
WindowsAppXPackageManager
WindowsClusterclientfailover
WindowsClusterSharedVolumes(CSV)
WindowsUniversalLogFileSystemDriver
WindowsDefender
MicrosoftDWMcorelibrary
WindowsEndpointConfigurationManager
WindowsFaxComposeForm
WindowsFeedbackHub
WindowsFileExplorer
WindowsFileServer
WindowsInstaller
WindowsiSCSITargetService
WindowsKerberos
WindowsKernel
WindowsLocalSecurityAuthenticationSubsystemService
WindowsMedia
WindowsNetworkFileSystem
WindowsPowerShell
WindowsPrintSpooler