Type confusion in Microsoft SQL Server - CVE-2026-54116
Published: July 17, 2026
Vulnerability identifier: #VU138174
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-54116
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft SQL Server
Microsoft SQL Server
Detailed vulnerability description
The vulnerability allows a remote user to gain access to sensitive information.
The vulnerability exists due to a type confusion error. A remote user can send specially crafted request to the SQL server and disclose internal memory pointers.
How to mitigate CVE-2026-54116
Install security update from vendor's website.