CVE-2026-68787: Microsoft SQL Server Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2026-Sep

Released

2026-09-08

Description

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code locally.

FAQ

What privileges could be gained by an attacker who successfully exploited the vulnerability? An attacker who successfully exploited this vulnerability could gain SQL sysadmin privileges.

Affected Products (8)

SQL Server

• Microsoft SQL Server 2017 for x64-based Systems (GDR)
• Microsoft SQL Server 2019 for x64-based Systems (GDR)
• Microsoft SQL Server 2017 for x64-based Systems (CU 31)
• Microsoft SQL Server 2022 for x64-based Systems (GDR)
• Microsoft SQL Server 2025 for x64-based Systems (GDR)
• Microsoft SQL Server 2019 for x64-based Systems (CU 32)
• Microsoft SQL Server 2022 for x64-based Systems (CU 26)
• Microsoft SQL Server 2025 for x64-based Systems (CU8)

Security Updates (8)

• 5122775
• 5122773
• 5122774
• 5122771
• 5122770
• 5122772
• 5122768
• 5122769

Acknowledgments

Pwnforr777

Revision History

• 2026-09-08: Information published.