Patch tracker / KB5065227

KB5065227: Microsoft SQL Server 2017 for x64-base Security Update (September 2025)

KB5065227 is a High security update for Microsoft SQL Server 2017 for x64-base, released 2025-09-09. It closes 3 CVEs with a maximum CVSS of 8.8. The most likely of them to be attacked is CVE-2025-47997, which FIRST.org rates at 33% probability of exploitation in the next 30 days.

Update summary

High
2025-09-09
Released
3
CVEs fixed
8.8
Max CVSS
High
Severity
Deploy this cycle
Fixes 3 CVEs for Microsoft SQL Server 2017 for x64-base. No confirmed in-the-wild exploitation in this set today.

Fixes 3 CVEs. Most severe CVSS 8.8 (High). EPSS exploit probability up to 33%. Among the top 25% of tracked Microsoft updates by EPSS exploit probability.

Senserva found thiswe track every release for this product line, so we can tell you this package is behind

A newer security update for Microsoft SQL Server 2017 for x64-based Systems (GDR) has shipped since this one: KB5101346 (2026-07-14). 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.

Microsoft Update Catalog: download KB5065227Microsoft support article
Senserva AI Opinion for KB5065227

KB5065227 patches three CVEs across SQL Server 2016 SP3, 2017, and 2019 (all x64 GDR builds), with the worst rated High at CVSS 8.8 and a top EPSS of 33 percent. One included fix, CVE-2024-21907, is notably older than the September 2025 release date, suggesting a bundled component or dependency issue carried forward into these database engines. None of the three are in CISA KEV or tied to ransomware, so this is a plan-and-schedule update rather than an emergency.

Do this: Inventory your SQL Server 2016 SP3, 2017, and 2019 instances, then schedule KB5065227 into your next maintenance window with a validated backup and rollback plan before applying.

AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for KB5065227

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Full tracking and change history for KB5065227

Released
2025-09-09
Last changed
2025-09-09
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 KB5065227 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.

CVESeverityCVSSEPSSExploited
CVE-2024-21907High8.833%No
CVE-2025-55227High8.833%No
CVE-2025-47997Medium6.533%No

Scope and sources

Affected products
Also released in September 2025

KB5002775

3 CVEs · High

KB5002778

3 CVEs · High

KB5002784

1 CVE · High

KB5065220

2 CVEs · High

KB5065221

2 CVEs · High

KB5065222

3 CVEs · High

KB5065223

3 CVEs · High

KB5065224

3 CVEs · High

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5065227 page (Microsoft Support)Microsoft Update CatalogMicrosoft Security Update Guide

See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.

New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
Provided as is, without warranty; verify against the vendor advisory before acting. Data notice and terms.