CVE-2026-63512: Microsoft SharePoint Server Tampering Vulnerability
Published Aug 11, 2026
·Updated
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
6 affected componentsFixes available
Microsoft SharePoint Server Subscription Edition<16.0.19725.20522
16.0.19725.20522
Microsoft SharePoint Enterprise Server 2016<16.0.5565.1001
16.0.5565.1001
Microsoft SharePoint Server 2019<16.0.10417.20198
16.0.10417.20198
Microsoft SharePoint Server<16.0.19725.20522
Microsoft SharePoint Server=2016
Microsoft SharePoint Server=2019
Remediation
Event History
Aug 11, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:03 PM
Data Sourced
via MITRE·05:03 PM
DescriptionSeverity
Data Sourced
via NVD·05:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-63512?
CVE-2026-63512 has a medium severity rating of 6.5.
2
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.
3
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.
4
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.
5
When was CVE-2026-63512 published?
CVE-2026-63512 was published on August 11, 2026.