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#5 SecurityWeek general July 02, 2026 at 10:30 UTC

CISA Warns of Actively Exploited Microsoft SharePoint Vulnerability

By Ionut Arghire

AI Summary

CISA has added CVE-2026-45659, a high-severity Microsoft SharePoint remote code execution vulnerability patched in May 2026, to its Known Exploited Vulnerabilities catalog after confirming active in-the-wild exploitation. Federal agencies face mandatory remediation deadlines under BOD 22-01, and the flaw is being targeted with public PoC code. SharePoint administrators should prioritize patching immediately given the confirmed active exploitation.

Read full article → https://www.securityweek.com/cisa-warns-of-activel…

Relevance score: 83.0/100

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