CVE-2026-55002Important
Microsoft SQL Server Elevation of Privilege Vulnerability
Assessment
External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.
- Severity
- Important
- CVSS base score
- 8.8CVSS:3.1/
AV:N/ AC:L/ PR:L/ UI:N/ S:U/ C:H/ I:H/ A:H - Impact
- Elevation of Privilege
- EPSS, next 30 days
- 0.9%Higher than 58.5% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
- Exploitability
- Exploitation Less Likely
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- SQL Server
- Weakness
- CWE-73: External Control of File Name or Path
- Issued by
- Microsoft
- Published
- 14 Jul 2026 · July 2026
- Last revised
- 14 Jul 2026
Updates that fix it
10 KBs| KB | Type | Restart | Applies to | Other CVEs |
|---|---|---|---|---|
| KB5101346 | Security Update | — | Microsoft SQL Server 2025 for x64-based Systems (CU6) | All CVEs in KB5101346 |
| KB5101347 | Security Update | — | Microsoft SQL Server 2022 for x64-based Systems (CU 25) | All CVEs in KB5101347 |
| KB5102333 | Security Update | — | Microsoft SQL Server 2025 for x64-based Systems (GDR) | All CVEs in KB5102333 |
| KB5102334 | Security Update | — | Microsoft SQL Server 2022 for x64-based Systems (GDR) | All CVEs in KB5102334 |
| KB5102335 | Security Update | — | Microsoft SQL Server 2019 for x64-based Systems (CU 32) | All CVEs in KB5102335 |
| KB5102336 | Security Update | — | Microsoft SQL Server 2019 for x64-based Systems (GDR) | All CVEs in KB5102336 |
| KB5102337 | Security Update | — | Microsoft SQL Server 2017 for x64-based Systems (CU 31) | All CVEs in KB5102337 |
| KB5102338 | Security Update | — | Microsoft SQL Server 2017 for x64-based Systems (GDR) | All CVEs in KB5102338 |
| KB5102339 | Security Update | — | Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 Azure Connect Feature Pack | All CVEs in KB5102339 |
| KB5102340 | Security Update | — | Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 (GDR) | All CVEs in KB5102340 |
Affected products
SQL Server10 affected products
- 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 (CU 31)
- Microsoft SQL Server 2017 for x64-based Systems (GDR)
- Microsoft SQL Server 2019 for x64-based Systems (CU 32)
- Microsoft SQL Server 2019 for x64-based Systems (GDR)
- Microsoft SQL Server 2022 for x64-based Systems (CU 25)
- Microsoft SQL Server 2022 for x64-based Systems (GDR)
- Microsoft SQL Server 2025 for x64-based Systems (CU6)
- Microsoft SQL Server 2025 for x64-based Systems (GDR)