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First reported by bsky

CISA adds actively exploited SharePoint RCE flaw to KEV catalog after Microsoft downplayed risk

SharePoint RCE CVE-2026-45659 Added to CISA KEV After Active Exploitation

[email protected] (The Hacker News)

2d ago

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thehackernews.comSharePoint RCE CVE-2026-45659 Added to CISA KEV After Active Exploitationthehackernews.com

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The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a high-severity flaw impacting Microsoft SharePoint Server to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2026-45659 (CVSS score: 8.8), is a case of remote code execution arising from the deserialization of untrusted data. The issue

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