# CVE-2026-65669: Microsoft SQL Server SQL injection privilege escalation

Source: https://junglewise.ai/threats/cve-2026-65669-microsoft-sql-server-sql-injection-privilege-escalation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-65669 · Severity: critical · CVSS 9.6 · Published 2026-09-08

Microsoft SQL Server is a database platform used by organizations to store and manage critical business data. A SQL injection vulnerability in SQL Server allows a network attacker to execute arbitrary SQL commands and elevate their privileges, potentially gaining unauthorized access to sensitive data or taking control of the database.

Technologies: [Microsoft SQL Server](https://junglewise.ai/threats/technologies/sql-server). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-65669 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-65669 being exploited in the wild.

**How severe is CVE-2026-65669?** Critical severity, with a CVSS score of 9.6, published 8 September 2026.

**Which products and versions are affected?** Microsoft SQL Server.

**Is there a fix for CVE-2026-65669?** 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-2026-65669 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-65669?** Check whether you run Microsoft SQL Server. 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

This vulnerability is a SQL injection flaw resulting from improper neutralization of special elements in output used by a downstream component. An attacker on the network can craft malicious input that is inadequately sanitized, allowing them to inject arbitrary SQL code. Successful exploitation permits privilege escalation and remote code execution without prior authentication. Microsoft has released security updates to address this vulnerability.

## Affected products

- Microsoft SQL Server

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65669](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65669)

## Related threats

- [Microsoft SQL Server heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-94513-heap-based-buffer-overflow-in-sql-server-allows-an-authorized)
- [Microsoft SQL Server heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-94511-heap-based-buffer-overflow-in-sql-server-allows-an-authorized)
- [Microsoft SQL Server heap buffer overflow](https://junglewise.ai/threats/cve-2026-88111-heap-based-buffer-overflow-in-sql-server-allows-an-authorized)
- [Microsoft SQL Server privilege escalation via exposed method](https://junglewise.ai/threats/cve-2026-84010-exposed-dangerous-method-or-function-in-sql-server-allows-an)
- [Microsoft SQL Server information disclosure via uninitialized resource](https://junglewise.ai/threats/cve-2026-68783-use-of-uninitialized-resource-in-sql-server-allows-an-authorized)