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cve-2026-45453

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CVE-2026-45453 is a Microsoft SharePoint Server spoofing vulnerability published in the June 2026 Security Update Guide. Unlike cloud-service issues handled invisibly by Microsoft, this vulnerability affects on-premises SharePoint deployments, which remain integral to identity, document, workflow, and intranet infrastructure. For SharePoint administrators, the advisory shifts from monitoring to action, requiring a planned farm update. Discussions on WindowsForum.com emphasize the need to evaluate and patch this vulnerability promptly to mitigate spoofing risks in on-premises environments.
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    CVE-2026-45453 SharePoint Spoofing: Why Admins Should Patch This June

    Microsoft has published CVE-2026-45453 as a Microsoft SharePoint Server spoofing vulnerability in its Security Update Guide, giving administrators a new on-premises SharePoint item to evaluate during the June 2026 patch cycle rather than a cloud-service issue handled invisibly by Microsoft. The...
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    • cve-2026-45453 microsoft security update guide on-premises patching sharepoint server
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    • Forum: Security Alerts
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