CVE-2026-56164

No fix known ExploitedEPSS 1%CVSS 5.3

Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.

Published 2026-07-14 · In CISA KEV since 2026-07-14 · CVE record · OSV

Products: Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition