Microsoft · Security update · October 16, 2025

KB5002770: October 2025 security update

KB5002770, released October 16, 2025, fixes 2 CVEs in Microsoft SharePoint Server 2019. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

UrgentUnsupported product

CVEs closed

1 rated Critical

Exploited

None reported

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.0055

46th percentile

Priority of the 2 CVEs

Patch now 0
                                Urgent 1
                                High 0
                                Routine 1

Applies to

Product
Microsoft SharePoint Server 2019

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Urgent	CVE-2025-53733	Microsoft Office Word	Remote Code Execution	8.4	0.0055	Exploitation Less Likely
Routine	CVE-2025-53736	Microsoft Office Word	Information Disclosure	6.8	0.0050	Exploitation Less Likely

Released the same day

KB5002752
Office Online Server
KB5002758
Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition)
KB5002763
Microsoft Word 2016 (32-bit edition), Microsoft Word 2016 (64-bit edition)
KB5002772
Microsoft SharePoint Enterprise Server 2016

Vendor advisory

https://support.microsoft.com/help/5002770

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