Stack-based buffer overflow in Fabric Data Warehouse - CVE-2026-56642
Published: July 17, 2026
Vulnerability identifier: #VU138266
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-56642
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Microsoft Fabric Data Warehouse. A remote user can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Fabric Data Warehouse
How to mitigate CVE-2026-56642
Install updates from vendor's website.
Fabric Data Warehouse - update to 8.0.206.113