Patch tracker / KB5002861
KB5002861: Microsoft SharePoint Server 2019 Security Update (April 2026)
KB5002861 is a Medium security update for Microsoft SharePoint Server 2019, released 2026-04-14. It closes 2 CVEs with a maximum CVSS of 6.5. At least one of them is actively exploited (CISA KEV), so this is a deploy-first update. The most likely of them to be attacked is CVE-2026-20945, which FIRST.org rates at 25% probability of exploitation in the next 30 days.
Update summary
Fixes 2 CVEs. At least one is actively exploited (CISA KEV). Most severe CVSS 6.5 (Medium). EPSS exploit probability up to 25%. Among the top half of tracked Microsoft updates by EPSS exploit probability.
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.
KB5002861 patches two CVEs across SharePoint Enterprise Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition, with the highest rated Medium (CVSS 6.5). What stands out is that one of these CVEs is on the CISA KEV list, meaning it has confirmed exploitation in the wild despite the modest CVSS score, and the 21% EPSS puts it well above typical odds of near-term exploitation. On-premises SharePoint farm operators are the exposed population here.
Do this: Schedule this update for your on-premises SharePoint farms now, prioritizing internet-facing servers given the KEV listing.
AI-generated from public data, 2026-07-26. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5002861
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5002861
- Released
- 2026-04-14
- Last changed
- 2026-07-29
- Changes tracked
- 3
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 KB5002861 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.
| CVE | Severity | CVSS | EPSS | Exploited |
|---|---|---|---|---|
| CVE-2026-32201 | Medium | 6.5 | 25% | KEV |
| CVE-2026-20945 | Medium | 4.6 | 25% | No |
Scope and sources
- Affected products
- Also released in April 2026
KB5002853
2 CVEs · Medium · exploitedKB5002854
2 CVEs · Medium · exploitedKB5082052
115 CVEs · CriticalKB5082060
121 CVEs · CriticalKB5082063
124 CVEs · CriticalKB5082123
107 CVEs · CriticalKB5082142
116 CVEs · CriticalKB5082198
87 CVEs · CriticalThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.