CVE-2025-59233

HIGH

Microsoft Excel - Remote Code Execution via Type Confusion

Title source: llm
STIX 2.1

Description

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0048
EPSS Percentile 37.4%
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-843
Status published
Products (6)
microsoft/365_apps (2 CPE variants)
microsoft/excel 2016 (2 CPE variants)
microsoft/office 2019 (2 CPE variants)
microsoft/office_long_term_servicing_channel 2021 (3 CPE variants)
microsoft/office_long_term_servicing_channel 2024 (3 CPE variants)
microsoft/office_online_server < 16.0.10417.20059
Published Oct 14, 2025
Tracked Since Feb 18, 2026