CVE advisoryKnown Exploit
CVE-2026-20963
Microsoft SharePoint Remote Code Execution Vulnerability
Halo Surface Signal: 4 out of 5 — likely to be public-facing.
A vulnerability in Microsoft SharePoint allows unauthorized attackers to execute code remotely over a network. This issue arises from the deserialization of untrusted data. Affected organizations face business risks including system compromise and potential data impact.