CVE-2026-65669 – Microsoft SQL Server Elevation of Privilege Vulnerability

CVSS 9.6 CRITICAL Critical - Same Day Deployment

“A crafted SQL Copilot instruction could turn read-only access into the ability to reach or change sensitive database data.”

CVE-2026-65669 is an elevation-of-privilege vulnerability involving improper neutralization of special elements in output used by a downstream component. An unauthorized attacker could convince a user to submit specially crafted instructions to SQL Copilot in SQL Server Management Studio. Successful exploitation could bypass intended read-only restrictions and access or modify database data with the connected user’s permissions.

Key Details

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
CWE Classification
CWE-74
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