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SharePoint Deserialization of Untrusted Data Vulnerability - CVE-2026-21511 - Vulnerability Database
SharePoint

SharePoint Deserialization of Untrusted Data Vulnerability - CVE-2026-21511

High
Reference: CVE-2026-21511
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2026-21511
Title: SharePoint Deserialization of Untrusted Data Vulnerability
Overview:

Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.