Patch tracker / KB5070892
KB5070892: Windows Server 2019 Security Update (October 2025)
KB5070892 is a Critical security update for Windows Server 2019, released 2025-10-14. It closes 1 CVE with a maximum CVSS of 9.8. 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-2025-59287, which FIRST.org rates at 100% probability of exploitation in the next 30 days.
Update summary
Fixes 1 CVE. At least one is actively exploited (CISA KEV). Most severe CVSS 9.8 (Critical). EPSS exploit probability up to 100%. Among the top 5% of tracked Microsoft updates by EPSS exploit probability.
A newer security update for Windows Server 2019 has shipped since this one: KB5094041 (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.
KB5070892 patches CVE-2025-59287, a Critical (CVSS 9.8) flaw affecting Windows Server 2019 and 2022, including Server Core installations. This one stands out because it carries a maximum EPSS score of 100% and is already listed in CISA KEV, meaning active exploitation is confirmed even though it is not tied to ransomware. Server operators face a near-certain exploitation likelihood, so this is not a patch to defer.
Do this: Deploy KB5070892 to all Windows Server 2019 and 2022 hosts today, prioritizing internet-facing and Server Core systems.
AI-generated from public data, 2026-07-27. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5070892
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5070892
- 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 KB5070892 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-2025-59287 | Critical | 9.8 | 100% | KEV |
Scope and sources
- Affected products
- Also released in October 2025
KB5070879
1 CVE · Critical · exploitedKB5070881
1 CVE · Critical · exploitedKB5070882
1 CVE · Critical · exploitedKB5070883
1 CVE · Critical · exploitedKB5070884
1 CVE · Critical · exploitedKB5070886
1 CVE · Critical · exploitedKB5070887
1 CVE · Critical · exploitedKB5070893
1 CVE · Critical · exploitedThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.