CVE-2026-63512: Microsoft SharePoint Server Tampering Vulnerability
Incorrect authorization in Microsoft Office SharePoint allows an authorized attacker to perform tampering over a network.
Other sources
Microsoft SharePoint Server Tampering Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.19725.20522Patch KB5002893 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5565.1001Patch KB5002906 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.10417.20198Patch KB5002896
Event History
Frequently Asked Questions
What is the severity of CVE-2026-63512?
CVE-2026-63512 has a medium severity rating of 6.5.
How do I fix CVE-2026-63512?
To fix CVE-2026-63512, ensure you apply the latest security updates and patches provided by Microsoft for affected SharePoint versions.
What types of Microsoft SharePoint are affected by CVE-2026-63512?
CVE-2026-63512 affects Microsoft SharePoint Server Subscription Edition, SharePoint Enterprise Server 2016, and SharePoint Server 2019.
What is the impact of CVE-2026-63512?
The impact of CVE-2026-63512 allows an authorized attacker to perform tampering over a network due to incorrect authorization.
When was CVE-2026-63512 published?
CVE-2026-63512 was published on August 11, 2026.