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. Get it from the Microsoft Update Catalog below, and see where it sits against the rest of the month on the patch tracker.
Update summary
New to these terms? How the Microsoft patching tools fit together, this month's Patch Tuesday summary, and every update ranked by real-world risk.
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
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.
Exploitation and severity
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.
What to do
Moderate priority: schedule it in your normal patch cycle. Senserva flags whether KB5002787 is missing on your devices.
Check if KB5002787 is installed
Copy-paste PowerShell: one machine, or your whole estate in one pass. No output means the update is not installed.
Get-HotFix covers Windows updates. Office, SharePoint, and Exchange server updates show under installed updates in Programs and Features, or check the Update Catalog history.
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.
| CVE | Severity | CVSS | EPSS | Exploited |
|---|---|---|---|---|
| CVE-2025-59221 | High | 8.8 | 2.3% | No |
| CVE-2025-59222 | High | 8.8 | 2.3% | No |
Affected products
Also released in October 2025
The highest-risk updates from the same release:
The full month, summarized: Microsoft Patch Tuesday.
Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.