MEDIUM 5.3 Microsoft PoC
CVE-2026-56164
Microsoft SharePoint Server Elevation of Privilege Vulnerability
Microsoft Security Update 2026-Jul: Microsoft SharePoint Server 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-2026-56164
- https://nvd.nist.gov/vuln/detail/CVE-2026-56164
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-07-14 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. EPSS score: 22.4% (top 2% of all CVEs by exploitation probability). Affected: Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition.
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