CVE-2026-88200: Microsoft Office SharePoint Elevation of Privilege Vulnerability
Microsoft Office SharePoint Elevation of Privilege Vulnerability
Other sources
Privilege context switching error in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
— 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 16.0.20326.20190Patch KB5002927
Event History
Frequently Asked Questions
Which deployments are in scope?
The affected software listed is Microsoft Office SharePoint and Microsoft SharePoint Server Subscription Edition.
What does an attacker need to exploit this issue?
An attacker must already be authorized and able to reach the vulnerable SharePoint service over the network. No user interaction is indicated in the supplied severity vector.
What could successful exploitation allow?
Successful exploitation can allow an authorized attacker to elevate privileges. The supplied severity vector indicates high impacts to confidentiality, integrity, and availability.