Patch tracker / KB5084815
KB5084815: Microsoft SQL Server 2025 for x64-base Security Update (April 2026)
KB5084815 is a High security update for Microsoft SQL Server 2025 for x64-base, released 2026-04-14. It closes 3 CVEs with a maximum CVSS of 8.8. It is the 17th largest of the 60 updates Microsoft shipped that month, by CVEs closed.
Update summary
Fixes 3 CVEs. Most severe CVSS 8.8 (High). EPSS exploit probability up to <1%. Among the lower half of tracked Microsoft updates by EPSS exploit probability.
KB5084815 patches three CVEs across SQL Server 2025 (CU3), 2022 (CU24), and 2017 (GDR), with the worst rated High at CVSS 8.8. Anyone running these SQL Server versions on x64 systems is exposed, and the CVSS 8.8 score suggests at least one flaw can be reached and exploited over a network connection to the database engine. No CVE here is in the CISA KEV catalog or linked to ransomware, and EPSS tops out at 1 percent, so this is important but not a fire drill.
Do this: Schedule the appropriate SQL Server servicing update (CU3 for 2025, CU24 for 2022, or the GDR for 2017) during your next maintenance window after validating in a test instance.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5084815
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5084815
- Released
- 2026-04-14
- Last changed
- 2026-04-14
- 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 KB5084815 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.
| CVE | Severity | CVSS | EPSS | Exploited |
|---|---|---|---|---|
| CVE-2026-33120 | High | 8.8 | <1% | No |
| CVE-2026-32167 | Medium | 6.7 | <1% | No |
| CVE-2026-32176 | Medium | 6.7 | <1% | No |
Scope and sources
- Affected products
- Also released in April 2026
KB5082052
115 CVEs · Critical · exploitedKB5082060
121 CVEs · Critical · exploitedKB5082063
124 CVEs · Critical · exploitedKB5082123
107 CVEs · Critical · exploitedKB5082142
116 CVEs · Critical · exploitedKB5082198
87 CVEs · Critical · exploitedKB5082200
107 CVEs · Critical · exploitedKB5083768
119 CVEs · Critical · exploitedThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.