Information Disclosure Vulnerability in Microsoft SQL Server by Microsoft
CVE-2026-67386

6.5MEDIUM

Key Information:

Vendor

Microsoft
Status
Microsoft Sql Server 2017 (cu 31)
Microsoft Sql Server 2017 (gdr)
Microsoft Sql Server 2019 (cu 32)
Microsoft Sql Server 2019 (gdr)
Vendor
CVE Published:
8 September 2026

What is CVE-2026-67386?

A vulnerability exists in Microsoft SQL Server that stems from the improper handling of uninitialized resources. This flaw can be exploited by an authenticated attacker, enabling them to disclose sensitive information over a network. Effective mitigation requires prompt attention to security updates and patches released by Microsoft.

Affected Version(s)

Microsoft SQL Server 2017 (CU 31) x64-based Systems 14.0.0 < 14.0.3550.4

Microsoft SQL Server 2017 (GDR) x64-based Systems 14.0.0 < 14.0.2130.4

Microsoft SQL Server 2019 (CU 32) x64-based Systems 15.0.0.0 < 15.0.4490.9

References

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

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.