Patch tracker / KB5065508
KB5065508: Windows Server 2019 Security Update (September 2025)
KB5065508 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.
KB5065508 is the September 9, 2025 rollup for Windows Server 2019 and 2022, patching 26 CVEs with a top rating of High (CVSS 8.8) and a peak EPSS of 19 percent. None of these are on the CISA KEV list or linked to ransomware yet, but the 19 percent EPSS on the worst issue is higher than typical for a fresh Patch Tuesday batch, suggesting an above-average near-term exploit probability. Any Server 2019 or 2022 host, including Server Core installations, is in scope.
Do this: Schedule KB5065508 across your Server 2019 and 2022 fleet, prioritizing internet-facing and domain-critical hosts given the CVSS 8.8 ceiling and 19 percent EPSS.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5065508
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5065508
- 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 KB5065508 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.