CRITICAL 9.3 Microsoft
CVE-2026-70306
Microsoft Office SharePoint Spoofing Vulnerability
Microsoft Security Update 2026-Aug: Microsoft Office SharePoint Spoofing 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-2026-70306
- https://nvd.nist.gov/vuln/detail/CVE-2026-70306
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-08-11 via Microsoft. Affected: Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition.
Risk Timeline
CVE Disclosed2026-08-11 · -1 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70306NVD / MITRE
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