HIGH 8.8 Microsoft
CVE-2026-45484
Microsoft SharePoint Elevation of Privilege Vulnerability
Microsoft Security Update 2026-Jun: Microsoft SharePoint Elevation of Privilege Vulnerability
Affected Products
- Microsoft SharePoint Enterprise Server 2016
- Microsoft SharePoint Server 2019
- Microsoft SharePoint Server Subscription Edition
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45484
- https://nvd.nist.gov/vuln/detail/CVE-2026-45484
This high severity vulnerability with a CVSS score of 8.8 was published on 2026-06-09 via Microsoft. EPSS score: 35.2% (top 2% of all CVEs by exploitation probability). Affected: Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition.
vulnfeed aggregates 9166 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.