Remote Code Execution Vulnerability in SQL Server by Microsoft
CVE-2026-40370

8.8HIGH

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:
12 May 2026

What is CVE-2026-40370?

This vulnerability in SQL Server allows an authorized attacker to gain control over the filename or path parameters, potentially enabling them to execute arbitrary code remotely across the network. By exploiting this issue, attackers can compromise the integrity and confidentiality of the system, raising significant security concerns for organizations utilizing this software. It is crucial to address the associated risks by applying relevant security updates and patches.

Affected Version(s)

Microsoft SQL Server 2016 Service Pack 3 (GDR) x64-based Systems 13.0.0 < 13.0.6490.1

Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack x64-based Systems 13.0.0 < 13.0.7085.1

Microsoft SQL Server 2017 (CU 31) x64-based Systems 14.0.0 < 14.0.3530.2

References

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

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.