2026-009: Critical Vulnerability in Microsoft SharePoint
ID: 5ed93207-9947-588c-9166-cac694de1ebd
STIX ID: report--5ed93207-9947-588c-9166-cac694de1ebd
Feed Name: CERT-EU Security Advisories
Threat Score
CERT-EU warns of multiple critical Microsoft SharePoint Server vulnerabilities (including CVE-2026-50522, CVE-2026-32201, CVE-2026-45659, CVE-2026-56164, and CVE-2026-58644) — several with CVSS 9.8 — and reports proof-of-concept exploit code and observed active exploitation; organisations are urged to apply updates immediately, rotate credentials for internet-exposed assets, and perform compromise assessments.
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