Windows Server · 2022 · Release · Security update (Patch Tuesday)
September 8, 2026—KB5122882 (OS Build 20348.5622)
- Release
- Cumulative update
- KB5122882 — Microsoft's article, opens in a new tab
Windows Server 2022: Supported LTSC release
Microsoft's known issues — KB5122882
- Issue Known issue After installing KB5070884 or later updates, Windows Server Update Services (WSUS) does not display synchronization error details within its error reporting. This functionality is temporarily removed to address the Remote Code Execution Vulnerability, CVE-2025-59287 . After installing the September 2026 Windows security update, some organizations might experience issues with Remote Desktop Services (RDS). In some environments, RDS might become unstable, resulting in RDP connections failing after several minutes, sign-in issues, or servers hanging at "Please wait for the Remote Desktop Configuration". Related tools, including Microsoft Management Console (MMC), RDS Licensing Diagnoser, and Fi Workaround: This issue is resolved in Windows updates released on and after September 14, 2026 such as KB5129237 . We recommend you install the latest Windows update for your device as it contains important improvements and issue resolutions, including this one.
Known issues — reported on the forum
No problems reported on the forum for this build yet. Threads that name 20348.5622 or KB5122882 and describe a fault appear here automatically.
In the news
- Coverage CVE-2026-69620: Windows DHCP Server Remote Code Execution Vulnerability
- Coverage CVE-2026-77886: Windows DHCP Server Denial of Service Vulnerability
- Coverage CVE-2026-69405: Windows DHCP Server Denial of Service Vulnerability
- Coverage CVE-2026-71336: Windows Work Folder Service Remote Code Execution Vulnerability
- Coverage CVE-2026-69461: Windows NTFS Remote Code Execution Vulnerability
- Coverage CVE-2026-69292: Remote Desktop Gateway Service Elevation of Privilege Vulnerability
- Coverage CVE-2026-68893: Remote Desktop Licensing Service Elevation of Privilege Vulnerability
- Coverage CVE-2026-68897: Microsoft Standard XPS Elevation of Privilege Vulnerability
Discussed on the forum
No member thread names 20348.5622 yet.