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2026-009: Critical Vulnerabilities in Microsoft SharePoint

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vulnerabilities

2026-009: Critical Vulnerabilities in Microsoft SharePoint

Microsoft released security updates on July 14, 2026, for critical remote code execution vulnerabilities in SharePoint Server. WatchTowr identified proof-of-concept exploit code on July 20, 2026, and observed active exploitation of CVE-2026-50522 and related flaws affecting on-premise SharePoint instances. CERT-EU recommends immediate patching, credential rotation, and compromise assessment for exposed servers.

Why it matters: Organizations running on-premise SharePoint Server are actively targeted for exploitation; patch immediately, rotate credentials for internet-exposed instances, and assess for prior compromise.

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Correction

Correction recorded as of .

vulnerabilities

2026-009: Critical Vulnerabilities in Microsoft SharePoint

Microsoft released security updates on July 14, 2026, for critical remote code execution vulnerabilities in SharePoint Server. WatchTowr identified proof-of-concept exploit code on July 20, 2026, and observed active exploitation of CVE-2026-50522 and related flaws affecting on-premise SharePoint instances. CERT-EU recommends immediate patching, credential rotation, and compromise assessment for exposed servers.

Why it matters: Organizations running on-premise SharePoint Server are actively targeted for exploitation; patch immediately, rotate credentials for internet-exposed instances, and assess for prior compromise.

Source published
First seen by Cybersecurity Tracker

Source attribution

Glossary