Remote Code Execution Vulnerability in Microsoft Office SharePoint

CVE-2026-40357

What is CVE-2026-40357?

A vulnerability exists in Microsoft Office SharePoint that permits an authorized attacker to exploit deserialization of untrusted data, potentially leading to remote code execution over a network. This flaw highlights the necessity for stringent validation of data inputs to prevent unauthorized execution of malicious code. The implications of this vulnerability extend to any organization utilizing affected versions of SharePoint, underscoring the critical need for timely updates and security patches.

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