Elevation of Privilege Vulnerability in Microsoft Office SharePoint
CVE-2026-88198
8.8HIGH
Key Information:
- Vendor
Microsoft
- Vendor
- CVE Published:
- 13 October 2026
What is CVE-2026-88198?
An elevation of privilege vulnerability exists in Microsoft Office SharePoint due to improper authorization checks. An authenticated attacker could exploit this vulnerability to gain elevated access to sensitive information and configurations over a network. This flaw highlights the importance of securing protocols and ensuring authorization mechanisms are robust to prevent unauthorized privilege escalation.
Affected Version(s)
Microsoft SharePoint Server Subscription Edition x64-based Systems 16.0.0 < 16.0.20326.20190