CVE-2025-59236

Microsoft Excel Remote Code Execution Vulnerability

State: Published
Severity: 8.4 High
Published: Oct 14, 2025
Updated: Feb 26, 2026
Reserved: Sep 11, 2025

Description

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
Microsoft 365 Apps for EnterpriseMicrosoft	16.0.1 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office 2019Microsoft	19.0.0 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office LTSC 2021Microsoft	16.0.1 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office LTSC 2024Microsoft	16.0.0 to before https://aka.ms/OfficeSecurityReleasesAffected
Microsoft Office LTSC for Mac 2021Microsoft	16.0.1 to before 16.102.25101223Affected
Microsoft Office LTSC for Mac 2024Microsoft	16.0.0 to before 16.102.25101223Affected
Office Online ServerMicrosoft	16.0.0.0 to before 16.0.10417.20059Affected

References

Microsoft Excel Remote Code Execution Vulnerabilityvendor-advisorypatch

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