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Microsoft Security Response CenterCVE-2026-54118

Microsoft SQL Server Remote Code Execution Vulnerability

CriticalVendor CVSS 9.8 / 10 1 CVE Published Jul 14, 2026 at 7:00 AM UTC

Summary

Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.

Products covered

  • Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 Azure Connect Feature Pack

  • Microsoft SQL Server 2019 for x64-based Systems (GDR)

  • Microsoft SQL Server 2022 for x64-based Systems (GDR)

  • Microsoft SQL Server 2017 for x64-based Systems (CU 31)

  • Microsoft SQL Server 2019 for x64-based Systems (CU 32)

  • Microsoft SQL Server 2022 for x64-based Systems (CU 25)

  • Microsoft SQL Server 2025 for x64-based Systems (GDR)

  • Microsoft SQL Server 2025 for x64-based Systems (CU6)

Show 2 more products
  • Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 (GDR)

  • Microsoft SQL Server 2017 for x64-based Systems (GDR)

Remediation

Install KB5102339. Install KB5102336. Install KB5102334. Install KB5102337. Install KB5102335. Install KB5101347. Install KB5102333. Install KB5101346. Install KB5102340. Install KB5102338.

Vendor-listed fixes

  • 13.0.7095.1

  • 15.0.2180.2

  • 16.0.1190.2

  • 14.0.3540.1

  • 15.0.4480.2

  • 16.0.4262.2

  • 17.0.1125.2

  • 17.0.4060.2

Show 2 more fixes
  • 13.0.6500.1

  • 14.0.2120.1

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.