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#CVE-2026-55040

1 story taggedCVE-2026-55040.

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Vulnerabilities

SharePoint Flaw Lets Attackers Log In as Anyone. Microsoft Patches CVE-2026-55040.

Researchers used an AI agent to help chain bugs in Microsoft SharePoint into an unauthenticated takeover. The flaw carries a CVSS score of 9.1 and affects three server editions still widely used across government and enterprise.

4 min read
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