CVE-2025-59236

Microsoft Excel Remote Code Execution Vulnerability

CVE-2025-59236 is fixed in Office Online Server on 1 platform by KB5002797 (version ), released October 14, 2025. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent

CVSS

8.4

Critical

Exploitation

None reported

Exploitation Unlikely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0042

36th percentile

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

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Office Online Server		KB5002797	Oct 14, 2025

Details

Published
October 14, 2025
Weakness
Use After Free
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59236

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