Patch tracker / KB5063761

KB5063761: SQL Server 2016 Security Update (August 2025)

KB5063761 is a High security update for SQL Server 2016, released 2025-08-12. It closes 4 CVEs with a maximum CVSS of 8.8. It is the 20th largest of the 44 updates Microsoft shipped that month, by CVEs closed.

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Update summary

High
2025-08-12
Released
4
CVEs fixed
8.8
Max CVSS v3
High
Severity
Deploy this cycle
Fixes 4 CVEs for SQL Server 2016. No confirmed in-the-wild exploitation in this set today.

Fixes 4 CVEs. Most severe CVSS 8.8 (High). EPSS exploit probability up to 1.7%. 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 2016 for x64-based Systems Service Pack 3 Azure Connect Feature Pack has shipped since this one: KB5102339 (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 KB5063761Microsoft support article
Senserva AI Opinion for KB5063761

KB5063761 is an August 2025 GDR update patching four SQL Server engine CVEs (CVE-2025-49758, CVE-2025-53727, CVE-2025-24999, CVE-2025-49759) across the 2016 SP3, 2017, and 2019 x64 builds. The highest rated flaw reaches High severity at CVSS 8.8, but EPSS is only 2 percent and none of the four are in CISA KEV or ransomware-linked, so this is a routine but real database-layer fix rather than an active-exploitation emergency.

Do this: Schedule this GDR update on your SQL Server 2016 SP3, 2017, and 2019 instances during the next maintenance window, prioritizing servers reachable by untrusted or application accounts.

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

Senserva AI Opinion and rich prompt for KB5063761

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

Full tracking and change history for KB5063761

Released
2025-08-12
Last changed
2026-09-26
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 KB5063761 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-2025-24999High8.81.7%No
CVE-2025-49758High8.81.7%No
CVE-2025-49759High8.81.7%No
CVE-2025-53727High8.81.7%No

Scope and sources

Affected products
Also released in August 2025

KB5063709

44 CVEs · Critical

KB5063812

56 CVEs · Critical

KB5063871

48 CVEs · Critical

KB5063875

47 CVEs · Critical

KB5063877

54 CVEs · Critical

KB5063878

61 CVEs · Critical

KB5063880

56 CVEs · Critical

KB5063888

34 CVEs · Critical

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5063761 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.
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