CVE-2026-66309: Microsoft Azure SQL Database

Critical severity, CVSS 9.1. EPSS: 0.9% chance of exploitation in the next 30 days.

Improper access control in Azure SQL Database allows an authorized attacker to elevate privileges over a network.

Affected products

• Microsoft Azure SQL Database: affected versions not specified

Published 2026-08-20. Last modified 2026-08-24.