Patch tracker / KB5063756

KB5063756: Microsoft SQL Server 2017 for x64-base Security Update (August 2025)

KB5063756 is a High security update for Microsoft SQL Server 2017 for x64-base, released 2025-08-12. It closes 5 CVEs with a maximum CVSS of 8.8. It is the 40th largest of the 67 updates Microsoft shipped that month, by CVEs closed.

Update summary

High
2025-08-12
Released
5
CVEs fixed
8.8
Max CVSS v3
High
Severity
Deploy this cycle
Fixes 5 CVEs for Microsoft SQL Server 2017 for x64-base. No confirmed in-the-wild exploitation in this set today.

Fixes 5 CVEs. Most severe CVSS 8.8 (High). EPSS exploit probability up to 1.6%. Among the lower half 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 KB5063756Microsoft support article
Senserva AI Opinion for KB5063756

KB5063756 is an August 2025 GDR update patching five CVEs across SQL Server 2016 SP3, 2017, and 2019 for x64, with the worst rated High severity at CVSS 8.8. Anyone running these SQL Server versions on database hosts is exposed, though none of these CVEs are in CISA KEV and the highest EPSS is only 2 percent, so active exploitation is not currently indicated. The value here is closing a batch of elevation and injection style flaws on database engines before they become attractive targets.

Do this: Schedule the KB5063756 GDR patch for your SQL Server 2016 SP3, 2017, and 2019 x64 instances during your next maintenance window.

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

Senserva AI Opinion and rich prompt for KB5063756

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

Full tracking and change history for KB5063756

Released
2025-08-12
Last changed
2025-08-12
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 KB5063756 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-2025-24999High8.81.6%No
CVE-2025-47954High8.81.6%No
CVE-2025-49758High8.81.6%No
CVE-2025-49759High8.81.6%No
CVE-2025-53727High8.81.6%No

Scope and sources

Affected products
Also released in August 2025

KB5058379

36 CVEs · High · exploited

KB5058383

39 CVEs · High · exploited

KB5058384

44 CVEs · High · exploited

KB5058385

42 CVEs · High · exploited

KB5058387

33 CVEs · High · exploited

KB5058392

42 CVEs · High · exploited

KB5058405

38 CVEs · High · exploited

KB5058411

44 CVEs · High · exploited

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5063756 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.