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CISA KEV: Microsoft SharePoint — Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

·Source: CISA KEV

Updated:

Executive Summary

Microsoft SharePoint contains a deserialization of untrusted data vulnerability which could allow an unauthorized attacker to execute code over a network.

Analysis

Microsoft SharePoint contains a deserialization of untrusted data vulnerability which could allow an unauthorized attacker to execute code over a network. Added to CISA Known Exploited Vulnerabilities catalog on 2026-07-22. Remediation due: 2026-07-25.

Indicators of Compromise (1)

CVE (1)
CVE-2026-50522
NVDMITRE CVE
Source Attribution

Originally published by CISA KEV on Jul 22, 2026. Verified by: CISA.

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