CVE-2026-56642: Microsoft Fabric Data Warehouse Remote Code Execution Vulnerability

Overview

Severity
High (CVSS 8.8)
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
Category
Remote Code Execution
Exploit Status
Not Exploited
Exploitation Likelihood
Unlikely
Patch Tuesday
2026-Jul
Released
2026-07-14

Description

Stack-based buffer overflow in Microsoft Fabric Data Warehouse allows an authorized attacker to execute code over a network.

FAQ

How could an attacker exploit the vulnerability? An attacker who successfully exploits this vulnerability could achieve remote code execution without user interaction. According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability? Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.

Affected Products (1)

SQL Server

  • Fabric Data Warehouse

Security Updates (1)

Acknowledgments

Microsoft Red Team

Revision History

  • 2026-07-14: Information published.