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CISA Adds Exploited SharePoint RCE Zero-Day CVE-2026-58644 to KEV

Written By Friday, 17 July 2026 Add Comment



July 17, 2026 at 12:12PM

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a newly patched security flaw impacting Microsoft SharePoint Server to its Known Exploited Vulnerabilities (KEV) catalog, requiring Federal Civilian Executive Branch (FCEB) agencies to apply the fixes by July 19, 2026. The vulnerability in question is CVE-2026-58644 (CVSS score: 9.8), a critical deserialization

from The Hacker News https://ift.tt/hJ5oKz7

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