Quick answers
- Is CVE-2026-66309 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-66309 being exploited in the wild.
- How severe is CVE-2026-66309?
- Critical severity, with a CVSS score of 9.1, published 20 August 2026.
- Which products and versions are affected?
- Microsoft Azure SQL Database.
- Is there a fix for CVE-2026-66309?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-66309 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-66309?
- Check whether you run Microsoft Azure Sql Database. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A privilege escalation vulnerability exists in Azure SQL Database due to improper access control mechanisms. An authorized attacker with network access can exploit this flaw to elevate privileges within the database system. The vulnerability is exploitable over the network without requiring additional user interaction. Successful exploitation could allow an attacker to gain administrative or higher-level access to database resources and data. Microsoft has issued a security patch; affected users should apply the update promptly.
Affected products
- Microsoft Azure SQL Database
Timeline
- 2026-08-20: disclosed