CVE-2025-59245

CRITICAL

Microsoft Sharepoint Online - Insecure Deserialization

Title source: rule

Description

Microsoft SharePoint Online Elevation of Privilege Vulnerability

References (1)

Scores

CVSS v3 9.8
EPSS 0.0062
EPSS Percentile 69.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-502
Status published

Affected Products (1)

microsoft/sharepoint_online

Timeline

Published Nov 20, 2025
Tracked Since Feb 18, 2026