Patch tracker / KB5065511
KB5065511: Windows Server 2019 Security Update (September 2025)
KB5065511 is a High security update for Windows Server 2019, released 2025-09-09. It closes 26 CVEs with a maximum CVSS of 8.8. The most likely of them to be attacked is CVE-2025-53797, which FIRST.org rates at 20% probability of exploitation in the next 30 days.
Update summary
Fixes 26 CVEs. Most severe CVSS 8.8 (High). EPSS exploit probability up to 20%. Among the top half 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.
KB5065511 is the September 9, 2025 rollup for Windows Server 2019 and 2022, addressing 26 CVEs including one rated High at CVSS 8.8. Any organization running these server editions is exposed, and the highest EPSS here is 19 percent, meaning exploitation is plausible but not yet observed in the wild. None of these CVEs are on the CISA KEV list or tied to ransomware campaigns, so this is a routine but substantial patch rather than an emergency.
Do this: Schedule this rollup into your next server maintenance window for all Windows Server 2019 and 2022 hosts, prioritizing internet-facing systems.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5065511
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5065511
- Released
- 2025-09-09
- Last changed
- 2026-08-10
- Changes tracked
- 2
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 KB5065511 is installed
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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-2025-54107 | High | 8.8 | 20% | No |
| CVE-2025-54110 | High | 8.8 | 20% | No |
| CVE-2025-54113 | High | 8.8 | 20% | No |
| CVE-2025-54917 | High | 8.8 | 20% | No |
| CVE-2025-54918 | High | 8.8 | 20% | No |
| CVE-2025-55234 | High | 8.8 | 20% | No |
| CVE-2025-54894 | High | 7.8 | 20% | No |
| CVE-2025-54916 | High | 7.8 | 20% | No |
| CVE-2025-54093 | High | 7.0 | 20% | No |
| CVE-2025-54099 | High | 7.0 | 20% | No |
| CVE-2025-53808 | Medium | 6.7 | 20% | No |
| CVE-2025-53810 | Medium | 6.7 | 20% | No |
| CVE-2025-54094 | Medium | 6.7 | 20% | No |
| CVE-2025-54104 | Medium | 6.7 | 20% | No |
| CVE-2025-54109 | Medium | 6.7 | 20% | No |
| CVE-2025-54915 | Medium | 6.7 | 20% | No |
| CVE-2025-55226 | Medium | 6.7 | 20% | No |
| CVE-2025-53796 | Medium | 6.5 | 20% | No |
| CVE-2025-53797 | Medium | 6.5 | 20% | No |
| CVE-2025-53798 | Medium | 6.5 | 20% | No |
| CVE-2025-53806 | Medium | 6.5 | 20% | No |
| CVE-2025-54095 | Medium | 6.5 | 20% | No |
| CVE-2025-54096 | Medium | 6.5 | 20% | No |
| CVE-2025-54097 | Medium | 6.5 | 20% | No |
| CVE-2025-55225 | Medium | 6.5 | 20% | No |
| CVE-2025-53799 | Medium | 5.5 | 20% | No |
Scope and sources
- Affected products
- Also released in September 2025
KB5002775
3 CVEs · HighKB5002778
3 CVEs · HighKB5002784
1 CVE · HighKB5065220
2 CVEs · HighKB5065221
2 CVEs · HighKB5065222
3 CVEs · HighKB5065223
3 CVEs · HighKB5065224
3 CVEs · HighThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.