Windows Server 2022 build 20348.5499 (KB5120242) — release notes, known issues

• 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 .

Microsoft's release notes for KB5120242 ›

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• Coverage CVE-2026-62714: Windows DHCP Server Information Disclosure Vulnerability Sep 8, 2026 · names this build
• Coverage CVE-2026-62720: Windows DHCP Server Information Disclosure Vulnerability Sep 8, 2026 · names this build
• Coverage CVE-2026-71331: Windows Device Health Attestation (DHA) Remote Code Execution Vulnerability Aug 20, 2026 · names this build
• Coverage CVE-2026-65791: Windows iSCSI Target Service Remote Code Execution Vulnerability Aug 18, 2026 · names this build
• Fix CVE-2026-62747: Patch Windows Device Association LPE Flaw Aug 11, 2026 · names this build
• Fix CVE-2026-62724: Patch Windows Telephony LPE, Don't Trust CPE Data Aug 11, 2026 · names this build
• Fix CVE-2026-61367: Patch Windows RDS Local Privilege Escalation Aug 11, 2026 · names this build
• Fix CVE-2026-56174: Patch Windows Narrator Braille LPE Aug 11, 2026 · names this build

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