Elevation of Privilege Vulnerability in Microsoft Office SharePoint
CVE-2026-88198

8.8HIGH

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

References

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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