CVE-2026-67642

Microsoft · Published September 8, 2026

8.8

CVSS v3.1

HIGH

Patch availableGet patch

Description

Microsoft SQL Server Remote Code Execution Vulnerability. Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

Affected Products

Microsoft SQL Server 2025 for x64-based Systems (CU8)
Microsoft SQL Server 2025 for x64-based Systems (GDR)

CVSS Vector

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