CVE-2026-64901: Microsoft SharePoint Server Remote Code Execution Vulnerability
Published Aug 11, 2026
·Updated
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Other sources
Microsoft SharePoint Server Remote Code Execution Vulnerability
— Microsoft
Affected Software
6 affected componentsFixes available
Microsoft SharePoint Server Subscription Edition<16.0.19725.20522
16.0.19725.20522
Microsoft SharePoint Server 2019<16.0.10417.20198
16.0.10417.20198
Microsoft SharePoint Enterprise Server 2016<16.0.5565.1001
16.0.5565.1001
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·05:06 PM
Data Sourced
via MITRE·05:06 PM
DescriptionSeverity
Data Sourced
via NVD·05:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-64901?
CVE-2026-64901 has a high severity rating of 8.8.
2
How do I fix CVE-2026-64901?
To fix CVE-2026-64901, apply the latest security updates and patches provided by Microsoft for affected SharePoint Server versions.
3
What types of software are affected by CVE-2026-64901?
CVE-2026-64901 affects Microsoft SharePoint Server Subscription Edition, Microsoft SharePoint Server 2019, and Microsoft SharePoint Enterprise Server 2016.
4
What impact does CVE-2026-64901 have on systems?
CVE-2026-64901 allows an authorized attacker to execute remote code on the vulnerable SharePoint server.
5
When was CVE-2026-64901 published?
CVE-2026-64901 was published on August 11, 2026.