Microsoft has released an out-of-band update for Windows Server 2022, designated as KB5077800 (OS Build 20348.4650). This update addresses a specific issue that emerged after the January 13, 2026 security patch (KB5073457), which hindered users from signing into Remote Desktop sessions due to authentication problems affecting multiple applications.
KB5077800 incorporates cumulative security fixes and includes an update to the servicing stack, referenced as KB5074428. This update is crucial as it ensures that devices can reliably install future Windows updates. The out-of-band nature of this release indicates that it specifically targets the issues caused by the previous security update, rather than including older or newer updates unless specified in other cumulative updates.
While this update resolves the Remote Desktop authentication issue, users should be aware that systems installed with KB5070884 or later may experience limitations in reporting features within Windows Server Update Services (WSUS). This is a temporary situation as Microsoft addresses a major security vulnerability identified as CVE-2025-59287.
In summary, KB5077800 is a targeted fix aimed at enhancing the stability and security of Windows Server 2022, particularly in relation to Remote Desktop functionality, while also ensuring a smoother update process for future patches. Users are encouraged to install this update to mitigate the aforementioned issues and maintain optimal server performance and security
KB5077800 incorporates cumulative security fixes and includes an update to the servicing stack, referenced as KB5074428. This update is crucial as it ensures that devices can reliably install future Windows updates. The out-of-band nature of this release indicates that it specifically targets the issues caused by the previous security update, rather than including older or newer updates unless specified in other cumulative updates.
While this update resolves the Remote Desktop authentication issue, users should be aware that systems installed with KB5070884 or later may experience limitations in reporting features within Windows Server Update Services (WSUS). This is a temporary situation as Microsoft addresses a major security vulnerability identified as CVE-2025-59287.
In summary, KB5077800 is a targeted fix aimed at enhancing the stability and security of Windows Server 2022, particularly in relation to Remote Desktop functionality, while also ensuring a smoother update process for future patches. Users are encouraged to install this update to mitigate the aforementioned issues and maintain optimal server performance and security
Windows Server 2022 KB5077800 (OS Build 20348.4650) Out-of-band released
A fresh out-of-band update for Windows Server 2022 has been released as KB5077800, addressing a specific issue that arose after the January 13th security patch. The problem caused users to be unable to sign in during Remote Desktop sessions due to authentication issues affecting multiple apps. This update includes cumulative security fixes and incorporates KB5074428, which updates the servicing stack, ensuring devices can install future Windows fixes reliably.
Windows Server 2022 KB5077800 (OS Build 20348.4650) Out-of-band released @ NT Compatible
