SQL Server Elevation of Privilege Vulnerability in Microsoft Products
CVE-2026-55002

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Sql Server 2016 Service Pack 3 (gdr)
Microsoft Sql Server 2016 Service Pack 3 Azure Connect Feature Pack
Microsoft Sql Server 2017 (cu 31)
Microsoft Sql Server 2017 (gdr)
Vendor
CVE Published:
14 July 2026

What is CVE-2026-55002?

An external control of file name or path vulnerability in SQL Server can be exploited to allow an authorized attacker to elevate their privileges locally. This security weakness may enable attackers to gain broader access rights, potentially compromising the integrity and confidentiality of data managed by SQL Server. Organizations using affected versions of SQL Server should prioritize remediation to mitigate risks.

Affected Version(s)

Microsoft SQL Server 2016 Service Pack 3 (GDR) x64-based Systems 13.0.0 < 13.0.6500.1

Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack x64-based Systems 13.0.0 < 13.0.7095.1

Microsoft SQL Server 2017 (CU 31) x64-based Systems 14.0.0 < 14.0.3540.1

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.