CVE-2026-42990

Microsoft · Published July 14, 2026

9.8

CVSS v3.1

CRITICAL

Patch availableGet patch

Description

SQL Server ODBC driver Elevation of Privilege Vulnerability. Heap-based buffer overflow in SQL Server ODBC driver allows an unauthorized attacker to execute code over a network.

Affected Products

Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows Server 2019
Windows Server 2019 (Server Core installation)

CVSS Vector

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