Patch tracker / KB5084820

KB5084820: SQL Server 2016 Security Update (April 2026)

KB5084820 is a Medium security update for SQL Server 2016, released 2026-04-14. It closes 2 CVEs with a maximum CVSS of 6.7. It is the 34th largest of the 60 updates Microsoft shipped that month, by CVEs closed.

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Update summary

Medium
2026-04-14
Released
2
CVEs fixed
6.7
Max CVSS v3
Medium
Severity
Deploy this cycle
Fixes 2 CVEs for SQL Server 2016. No confirmed in-the-wild exploitation in this set today.

Fixes 2 CVEs. Most severe CVSS 6.7 (Medium). EPSS exploit probability up to <1%. 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 KB5084820Microsoft support article
Senserva AI Opinion for KB5084820

KB5084820 patches two CVEs (CVE-2026-32167 and CVE-2026-32176) across three SQL Server generations: 2025 gets CU3, 2022 gets CU24, and 2017 receives a GDR-only fix. The highest rating is Medium (CVSS 6.7) with 0% EPSS, none in the CISA KEV catalog and no ransomware ties. The spread of servicing paths matters here because your remediation depends on whether an instance is on the cumulative update train or the GDR track.

Do this: Inventory your SQL Server instances by version and apply CU3 to 2025, CU24 to 2022, and the GDR package to 2017 accordingly.

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

Senserva AI Opinion and rich prompt for KB5084820

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

Full tracking and change history for KB5084820

Released
2026-04-14
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 KB5084820 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-2026-32167Medium6.7<1%No
CVE-2026-32176Medium6.7<1%No

Scope and sources

Affected products
Also released in April 2026

KB5082052

114 CVEs · Critical · exploited

KB5082060

120 CVEs · Critical · exploited

KB5082063

123 CVEs · Critical · exploited

KB5082123

106 CVEs · Critical · exploited

KB5082142

115 CVEs · Critical · exploited

KB5082198

86 CVEs · Critical · exploited

KB5082200

106 CVEs · Critical · exploited

KB5083768

119 CVEs · Critical · exploited

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5084820 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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