CVE-2025-53733

Microsoft Word Remote Code Execution Vulnerability

CVE-2025-53733 is fixed in 4 products on 1 platform, first by KB5002771, released August 12, 2025. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent

CVSS

8.4

Critical

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0055

46th percentile

<p>Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to execute code locally.</p>

Where it's fixed

Product	Fix	Released
Microsoft
Microsoft SharePoint Enterprise Server 2016	KB5002772	Oct 16, 2025
Microsoft SharePoint Enterprise Server 2016	KB5002771	Aug 12, 2025
Microsoft SharePoint Server 2019	KB5002770	Oct 16, 2025
Microsoft SharePoint Server 2019	KB5002769	Aug 12, 2025
Microsoft Word 2016 (32-bit edition)	KB5002763	Oct 16, 2025
Microsoft Word 2016 (64-bit edition)	KB5002763	Oct 16, 2025

Details

Published
August 12, 2025
Weakness
Incorrect Conversion between Numeric Types
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53733

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