Critical9.8Microsoft Server

Critical [CVE-2026-54118] Microsoft SQL Server Remote Code Execution Vulnerability

This critical-severity Microsoft Server advisory covers CVE-2026-54118 affecting Microsoft SQL Server 2016, Microsoft SQL Server 2019, Microsoft SQL Server 2022.

CVE-2026-54118 Published Jul 14, 2026Updated by vendor Jul 14, 2026

CVE-2026-54118

Affected products & platforms

Microsoft ServerSQL Server

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Summary

Microsoft SQL Server Remote Code Execution Vulnerability

Affected products named by the advisory: Microsoft SQL Server 2016; Microsoft SQL Server 2019; Microsoft SQL Server 2022; Microsoft SQL Server 2017; and 1 more.

Affected products named by the advisory: Microsoft SQL Server 2025.

Affected versions

Microsoft SQL Server 2016 Service Pack 3 (GDR) 13.0.0
Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack 13.0.0
Microsoft SQL Server 2017 (CU 31) 14.0.0
Microsoft SQL Server 2017 (GDR) 14.0.0
Microsoft SQL Server 2019 (CU 32) 15.0.0.0
Microsoft SQL Server 2019 (GDR) 15.0.0
Microsoft SQL Server 2022 (GDR) 16.0.0
Microsoft SQL Server 2022 for x64-based Systems (CU 25) 16.0.4260.1
Microsoft SQL Server 2025 (CU 6) 17.0.4060.2
Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2

Official advisory · high-confidence parse· fetched 1 month ago·verify at source

Fixed versions

KB5102339 (build 13.0.7095.1)
KB5102336 (build 15.0.2180.2)
KB5102334 (build 16.0.1190.2)
KB5102337 (build 14.0.3540.1)
KB5102335 (build 15.0.4480.2)
KB5101347 (build 16.0.4262.2)
KB5102333 (build 17.0.1125.2)
KB5101346 (build 17.0.4060.2)

Official advisory · high-confidence parse· fetched 1 month ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Install the applicable security update for your platform: KB5102339, KB5102336, KB5102334, KB5102337, KB5102335, KB5101347 (see the Microsoft Update Catalog).

Official advisory · high-confidence parse· fetched 1 month ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Microsoft Security Update Guide (MSRC)official
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://api.msrc.microsoft.com/cvrf/v3.0/updates; this link opens the Microsoft Server advisory index instead of the raw feed document.
Microsoft Server
Official vendor advisoryofficial
Official advisory page fetched and parsed for the summary, affected/fixed versions and remediation guidance it provides.
Microsoft Server
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-54118NVD CVE.org MITRE

Official resources

Microsoft Update Catalog: KB5102339
Official documentation
Direct download of the KB5102339 security update named in the MSRC remediation data for this CVE.
Microsoft Update Catalog: KB5102336
Official documentation
Direct download of the KB5102336 security update named in the MSRC remediation data for this CVE.
Microsoft Update Catalog: KB5102334
Official documentation
Direct download of the KB5102334 security update named in the MSRC remediation data for this CVE.
MSRC Security Update Guide
Official documentation
Filter by this CVE for per-product KB numbers, severity and exploitability assessment.

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