# CVE-2026-67387: Microsoft SQL Server untrusted pointer dereference privilege escalation

Source: https://junglewise.ai/threats/cve-2026-67387-untrusted-pointer-dereference-in-sql-server-allows-an-authorized  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-67387 · Severity: high · CVSS 8.8 · Published 2026-11-10

SQL Server, Microsoft's database management system, contains a vulnerability in how it handles memory pointers that could allow an authenticated database user to gain elevated privileges and access restricted data or functionality. An attacker with valid database credentials could exploit this flaw to escalate their access level without additional authentication, potentially compromising the entire database and systems that depend on it.

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

## Quick answers

**Is CVE-2026-67387 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-67387 being exploited in the wild.

**How severe is CVE-2026-67387?** High severity, with a CVSS score of 8.8, published 10 November 2026.

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

**Is there a fix for CVE-2026-67387?** 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-2026-67387 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-67387?** 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

An untrusted pointer dereference vulnerability in SQL Server allows an authenticated attacker to execute privilege escalation over the network. The vulnerability requires valid SQL Server credentials to exploit and could enable an attacker to access database functions or data beyond their assigned permissions.

## Affected products

- Microsoft SQL Server

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67387](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67387)

## 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)