Patch tracker / KB5002787

KB5002787: Microsoft SharePoint Server 2019 Security Update (October 2025)

KB5002787 is a High security update for Microsoft SharePoint Server 2019, released 2025-10-14. It closes 2 CVEs with a maximum CVSS of 7.8. It is the 26th largest of the 60 updates Microsoft shipped that month, by CVEs closed.

Update summary

High
2025-10-14
Released
2
CVEs fixed
7.8
Max CVSS v3
High
Severity
Deploy this cycle
Fixes 2 CVEs for Microsoft SharePoint Server 2019. No confirmed in-the-wild exploitation in this set today.

Fixes 2 CVEs. Most severe CVSS 7.8 (High). EPSS exploit probability up to <1%. Among the lower half of tracked Microsoft updates by EPSS exploit probability.

Senserva found thiswe track every release for this product line, so we can tell you this package is behind

A newer security update for Microsoft SharePoint Enterprise Server 2016 has shipped since this one: KB5002882 (2026-08-11). For cumulative update families the newer package includes these fixes, so installing that one is usually the shorter path. Verify against your own update rings before you skip this package.

Microsoft Update Catalog: download KB5002787Microsoft support article
Senserva AI Opinion for KB5002787

KB5002787 is the October 14, 2025 fix for two flaws (CVE-2025-59221 and CVE-2025-59222) affecting SharePoint Enterprise Server 2016, SharePoint Server 2019, and Office 2019 32-bit editions. The highest rating is High with a CVSS of 7.8, and exploitation prediction (EPSS) sits at 0 percent with no CISA KEV or ransomware links, so on-premises SharePoint farm operators are the exposed group. The unusual angle is that this single package spans both SharePoint server products and an Office client, so a farm patch cycle alone may leave Office 2019 desktops unaddressed.

Do this: Deploy KB5002787 across your SharePoint 2016 and 2019 farms and confirm Office 2019 32-bit clients receive it too, rather than assuming server patching covers everything.

AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for KB5002787

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Full tracking and change history for KB5002787

Released
2025-10-14
Last changed
2025-10-14
Changes tracked
1

Senserva began recording day-to-day change history on 2026-07-07, and refreshes it several times a day. Release dates are historical where Microsoft publishes them; revision history is tracked from that date forward, so it does not include changes made before then.

Check if KB5002787 is installed

Elevated PowerShell. No output means it is not installed.

CVEs fixed by this update

Sorted exploited-first, then by CVSS. Every CVE links to its Senserva page with the full risk facts, references, and a ready-to-paste AI prompt.

CVESeverityCVSSEPSSExploited
CVE-2025-59222High7.82.3%No
CVE-2025-59221High7.02.3%No

Scope and sources

Affected products
Also released in October 2025

KB5070879

1 CVE · Critical · exploited

KB5070881

1 CVE · Critical · exploited

KB5070882

1 CVE · Critical · exploited

KB5070883

1 CVE · Critical · exploited

KB5070884

1 CVE · Critical · exploited

KB5070886

1 CVE · Critical · exploited

KB5070887

1 CVE · Critical · exploited

KB5070892

1 CVE · Critical · exploited

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5002787 page (Microsoft Support)Microsoft Update CatalogMicrosoft Security Update Guide

See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.

New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
Provided as is, without warranty; verify against the vendor advisory before acting. Data notice and terms.