CVE-2026-20963
MI
Microsoft SharePoint
Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
What it is
Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network.
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor notices and references
Description and required action as published by CISA. Full record at NVD.
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