# CVE-2026-54116: Microsoft SQL Server type confusion information disclosure

Source: https://junglewise.ai/threats/cve-2026-54116-microsoft-sql-server-type-confusion-information-disclosure  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-14. Updated: 2026-07-14  
License: CC BY 4.0 with a link back

CVE-2026-54116 · Severity: medium · CVSS 6.5 · Published 2026-07-14

Microsoft SQL Server, a widely used database management system, is affected by a security vulnerability that could allow an authorized user to access sensitive information. An attacker with basic login credentials could exploit this flaw to view data they are not permitted to see, potentially compromising business confidentiality. This issue affects specific versions of SQL Server 2025 and requires the installation of security updates to resolve.

Technologies: [Microsoft Sql Server 2025](https://junglewise.ai/threats/technologies/sql-server-2025). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-54116 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-54116 being exploited in the wild.

**How severe is CVE-2026-54116?** Medium severity, with a CVSS score of 6.5, published 14 July 2026.

**Which products and versions are affected?** Microsoft Sql Server 2025 17.0.4060.2.

**Is there a fix for CVE-2026-54116?** A patch was published on 2026-07-14: Security updates made available via MSRC update guide Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-54116 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-54116?** Check whether you run Microsoft Sql Server 2025 at an affected version. 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 type confusion vulnerability (CWE-843) exists in Microsoft SQL Server 2025. The flaw occurs when the application accesses a resource using an incompatible type, which can be triggered by a remote attacker with low-level privileges (PR:L). Successful exploitation allows the attacker to disclose sensitive information over the network, though it does not grant the ability to modify data or cause a denial of service. The vulnerability affects SQL Server 2025 CU 6 and specific GDR versions for x64-based systems. Microsoft has released security updates to address this issue.

## Affected products

- Microsoft SQL Server 2025 (CU 6) 17.0.4060.2
- Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2 to 17.0.1125.2

## Timeline

- 2026-07-14: advisory: Initial publication by Microsoft and NVD
- 2026-07-14: patched: Security updates made available via MSRC update guide

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54116](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54116)

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