CVE-2025-21364

HIGH

Microsoft 365 Apps - Insecure Deserialization

Title source: rule

Description

Microsoft Excel Security Feature Bypass Vulnerability

References (1)

Scores

CVSS v3 7.8
EPSS 0.0022
EPSS Percentile 44.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

CWE
CWE-502
Status published

Affected Products (4)

microsoft/365_apps
microsoft/365_apps
microsoft/office_long_term_servicing_channel
microsoft/office_long_term_servicing_channel

Timeline

Published Jan 14, 2025
Tracked Since Feb 18, 2026