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Microsoft Security Response CenterCVE-2026-55002

Microsoft SQL Server Elevation of Privilege Vulnerability

External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.

Read the vendor bulletin Get alerts for Microsoft SQL Server 2019 for x64-based Systems (GDR)
8.8CVSS out of 10High severity
Scope

What the vendor says is affected

  • Microsoft SQL Server 2019 for x64-based Systems (GDR)
  • Microsoft SQL Server 2019 for x64-based Systems (CU 32)
  • Microsoft SQL Server 2025 for x64-based Systems (CU6)
  • Microsoft SQL Server 2025 for x64-based Systems (GDR)
  • Microsoft SQL Server 2022 for x64-based Systems (GDR)
  • Microsoft SQL Server 2022 for x64-based Systems (CU 25)
  • Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 (GDR)
  • Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 Azure Connect Feature Pack
  • Microsoft SQL Server 2017 for x64-based Systems (GDR)
  • Microsoft SQL Server 2017 for x64-based Systems (CU 31)

Versions the vendor lists as fixed

  • 15.0.2180.2
  • 15.0.4480.2
  • 17.0.4060.2
  • 17.0.1125.2
  • 16.0.1190.2
  • 16.0.4262.2
  • 13.0.6500.1
  • 13.0.7095.1
  • 14.0.2120.1
  • 14.0.3540.1
Next step

What the vendor recommends

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

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-55002View CVSS, KEV, EPSS, and threat context
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