Patch tracker / KB5073031
KB5073031: Microsoft SQL Server 2022 for x64-base Security Update (January 2026)
KB5073031 is a High security update for Microsoft SQL Server 2022 for x64-base, released 2026-01-13. It closes 1 CVE with a maximum CVSS of 7.2. Get it from the Microsoft Update Catalog below, and see where it sits against the rest of the month on the patch tracker.
Update summary
New to these terms? How the Microsoft patching tools fit together, this month's Patch Tuesday summary, and every update ranked by real-world risk.
Senserva AI Opinion for KB5073031
KB5073031 patches a single flaw, CVE-2026-20803, across three SQL Server servicing branches: SQL Server 2022 and 2025 GDR plus the SQL Server 2022 CU 22 cumulative track. Severity is rated High at CVSS 7.2, but EPSS sits at 1 percent with no CISA KEV listing or ransomware association. Exposure is limited to organizations running these specific SQL Server versions, and the branch split matters because you must apply the update that matches your existing patch train.
Do this: Identify whether each SQL Server 2022/2025 instance is on the GDR or CU 22 branch and apply the matching KB5073031 package so you stay on the correct servicing path.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5073031
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5073031
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.
Exploitation and severity
Fixes 1 CVE. Most severe CVSS 7.2 (High). EPSS exploit probability up to 1.2%.
Among the lower half of tracked Microsoft updates by EPSS exploit probability.
What to do
Moderate priority: schedule it in your normal patch cycle. Senserva flags whether KB5073031 is missing on your devices.
Check if KB5073031 is installed
Copy-paste PowerShell: one machine, or your whole estate in one pass. No output means the update is not installed.
Get-HotFix covers Windows updates. Office, SharePoint, and Exchange server updates show under installed updates in Programs and Features, or check the Update Catalog history.
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-2026-20803 | High | 7.2 | 1.2% | No |
Affected products
Also released in January 2026
The highest-risk updates from the same release:
The full month, summarized: Microsoft Patch Tuesday.
Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.