KB5121986

WSUS Sync Timeouts: Microsoft Issues a Cleanup Fix WSUS sync timeouts causing failed Windows Update scans on enterprise Windows Server update servers

WSUS sync timeouts causing failed Windows Update scans on enterprise Windows Server update servers

WSUS Sync Timeouts: Microsoft Issues a Cleanup Fix

Do Son July 22, 2026

Enterprise WSUS update servers began faltering around 13 July 2026. The disruption spread widely across corporate networks....

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CVE-2026-50522CVSS 9.8
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Admin intel📅 Updated: Jul 21, 2026
CVE-2026-63030CVSS 9.8
WordPress 6.9.x before 6.9.5 and 7.0.x before 7.0.2 is affected by a REST API batch endpoint route confusion...
Admin intelCISA KEV📅 Added to KEV: Jul 21, 2026📅 Updated: Jul 21, 2026
CVE-2026-60137CVSS 5.9
WordPress 6.8.x before 6.8.6, 6.9.x before 6.9.5, and 7.0.x before 7.0.2 does not properly sanitise the author__not_in parameter...
Admin intelCISA KEV📅 Added to KEV: Jul 21, 2026📅 Updated: Jul 21, 2026
CVE-2026-0770CVSS 9.8
Langflow exec_globals Inclusion of Functionality from Untrusted Control Sphere Remote Code Execution Vulnerability. This vulnerability allows remote attackers...
CISA KEV📅 Added to KEV: Jul 21, 2026
CVE-2021-27137CVSS 8.1
An issue was discovered in router/upnp/src/ssdp.c in DD-WRT before 45724. An unsafe strcpy in the UPnP handling functionality...
CISA KEV📅 Added to KEV: Jul 21, 2026
CVE-2026-6875CVSS 9.5
ServiceNow has addressed a remote code execution vulnerability that was identified in the ServiceNow AI platform. This vulnerability...
Admin intel📅 Updated: Jul 18, 2026
CVE-2026-39808CVSS 9.8
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox...
CISA KEV📅 Added to KEV: Jul 16, 2026
CVE-2026-25089CVSS 9.8
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSandbox...
CISA KEV📅 Added to KEV: Jul 16, 2026

Critical Alert 4 Active Exploits Detected Today

WSUS Sync Timeouts: Microsoft Issues a Cleanup Fix