HIGHVulnerability
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Global

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

·Source: CISA KEV

Updated:

Executive Summary

Microsoft SharePoint Server contains a deserialization of untrusted data vulnerability which allows an authorized attacker to execute code over a network.

Analysis

Microsoft SharePoint Server contains a deserialization of untrusted data vulnerability which allows an authorized attacker to execute code over a network. Added to CISA Known Exploited Vulnerabilities catalog on 2026-07-01. Remediation due: 2026-07-04.

Indicators of Compromise (1)

CVE (1)
CVE-2026-45659
NVDMITRE CVE
Source Attribution

Originally published by CISA KEV on Jul 1, 2026. Verified by: CISA.

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