CVE-2025-47994

HIGH

Microsoft 365 Apps and Office - Privilege Escalation via Untrusted Data Deserialization

Title source: llm
STIX 2.1

Description

Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0141
EPSS Percentile 80.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-502
Status published
Products (6)
microsoft/365_apps (2 CPE variants)
microsoft/office 2016 (2 CPE variants)
microsoft/office 2019 (2 CPE variants)
microsoft/office_long_term_servicing_channel 2021 (2 CPE variants)
microsoft/office_long_term_servicing_channel 2024 (2 CPE variants)
microsoft/sharepoint_enterprise_server 2016
Published Jul 08, 2025
Tracked Since Feb 18, 2026