CVE-2025-59245

CRITICAL

Microsoft SharePoint Online - Elevation of Privilege via Deserialization of Untrusted Data

Title source: llm
STIX 2.1

Description

Microsoft SharePoint Online Elevation of Privilege Vulnerability

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.0109
EPSS Percentile 78.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-502
Status published
Products (1)
microsoft/sharepoint_online
Published Nov 20, 2025
Tracked Since Feb 18, 2026