Improper Authorization in SQL Server by Microsoft
CVE-2026-118108

7.5HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Sql Server 2017 (gdr)
Microsoft Sql Server 2017 For X64-based Systems (cu31)
Microsoft Sql Server 2019 (gdr)
Microsoft Sql Server 2019 For X64-based Systems (cu32)
Vendor
CVE Published:
10 November 2026

What is CVE-2026-118108?

An elevation of privilege vulnerability has been identified in Microsoft SQL Server, which allows an authorized attacker to exploit improper authorization mechanisms and gain elevated access over a network. This could potentially lead to unauthorized actions being performed with elevated privileges. Administrators are urged to review their system configurations and apply the appropriate security patches to mitigate the risks associated with this vulnerability.

Affected Version(s)

Microsoft SQL Server 2017 (GDR) x64-based Systems 14.0.0 < 14.0.2150.2

Microsoft SQL Server 2017 for x64-based Systems (CU31) x64-based Systems 14.0.3006.16 < 14.0.3570.2

Microsoft SQL Server 2019 (GDR) x64-based Systems 15.0.0 < 15.0.2210.4

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.