Patch tracker / KB5073697
KB5073697: Windows Server 2019 Security Update (January 2026)
KB5073697 is a High security update for Windows Server 2019, released 2026-01-13. It closes 26 CVEs with a maximum CVSS of 8.8. The most likely of them to be attacked is CVE-2026-0386, which FIRST.org rates at 75% 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.
KB5073697 is the January 2026 rollup for Windows Server 2019 and 2022, fixing 26 CVEs with a top rating of High Severity (CVSS 8.8). None are on the CISA KEV list or tied to ransomware, and the highest EPSS is a modest 19 percent, so this is a routine but broad patch rather than an emergency. Notably it includes CVE-2023-31096, a much older CVE being addressed here alongside the current-year fixes.
Do this: Schedule this rollup into your normal January patch window for all Windows Server 2019 and 2022 hosts, prioritizing internet-facing systems given the 8.8 CVSS ceiling.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5073697
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5073697
- Released
- 2026-01-13
- Last changed
- 2026-08-12
- 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 KB5073697 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-2026-20936 | Critical | 9.8 | 75% | No |
| CVE-2026-20868 | High | 8.8 | 75% | No |
| CVE-2026-20931 | High | 8.0 | 75% | No |
| CVE-2023-31096 | High | 7.8 | 75% | No |
| CVE-2024-55414 | High | 7.8 | 75% | No |
| CVE-2026-20816 | High | 7.8 | 75% | No |
| CVE-2026-20820 | High | 7.8 | 75% | No |
| CVE-2026-20831 | High | 7.8 | 75% | No |
| CVE-2026-20840 | High | 7.8 | 75% | No |
| CVE-2026-20843 | High | 7.8 | 75% | No |
| CVE-2026-20860 | High | 7.8 | 75% | No |
| CVE-2026-20922 | High | 7.8 | 75% | No |
| CVE-2026-20940 | High | 7.8 | 75% | No |
| CVE-2026-0386 | High | 7.5 | 75% | No |
| CVE-2026-20849 | High | 7.5 | 75% | No |
| CVE-2026-20875 | High | 7.5 | 75% | No |
| CVE-2026-20921 | High | 7.5 | 75% | No |
| CVE-2026-20929 | High | 7.5 | 75% | No |
| CVE-2026-20869 | High | 7.0 | 75% | No |
| CVE-2026-20872 | Medium | 6.5 | 75% | No |
| CVE-2026-20925 | Medium | 6.5 | 75% | No |
| CVE-2026-20821 | Medium | 6.2 | 75% | No |
| CVE-2026-20833 | Medium | 5.5 | 75% | No |
| CVE-2026-20927 | Medium | 5.3 | 75% | No |
| CVE-2026-20828 | Medium | 4.6 | 75% | No |
| CVE-2026-20834 | Medium | 4.6 | 75% | No |
Scope and sources
- Affected products
- Also released in January 2026
KB5002822
6 CVEs · Critical · exploitedKB5002825
7 CVEs · Critical · exploitedKB5002828
7 CVEs · Critical · exploitedKB5073379
86 CVEs · Critical · exploitedKB5073450
80 CVEs · Critical · exploitedKB5073455
80 CVEs · Critical · exploitedKB5073457
78 CVEs · Critical · exploitedKB5073722
54 CVEs · 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.