CVE-2026-33120: Microsoft SQL Server remote code execution via untrusted pointer dereference

CVE-2026-33120 · Severity: high · CVSS 8.8 · Published 2026-04-14

Microsoft SQL Server is a widely used database management system for storing and processing corporate data. A vulnerability has been identified that allows an authorized user to execute malicious code on the server over the network. This could lead to a complete compromise of the database server, resulting in unauthorized data access, data loss, or service disruption.

Technologies: Microsoft Sql Server 2016, Microsoft Sql Server 2017, Microsoft Sql Server 2019, Microsoft Sql Server 2022, Microsoft Sql Server 2025. Vendors: Microsoft.

Quick answers

Is CVE-2026-33120 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-33120 being exploited in the wild.
How severe is CVE-2026-33120?
High severity, with a CVSS score of 8.8, published 14 April 2026.
Which products and versions are affected?
Microsoft Sql Server 2016 13.0.6300.2 - 13.0.6485.1, 13.0.7000.253 - 13.0.7080.1; Microsoft Sql Server 2017 14.0.1000.169 - 14.0.2105.1, 14.0.3006.16 - 14.0.3525.1; Microsoft Sql Server 2019 15.0.2000.5 - 15.0.2165.1, 15.0.4003.23 - 15.0.4465.1; Microsoft Sql Server 2022 16.0.1000.6 - 16.0.1175.1, 16.0.4003.1 - 16.0.4250.1; and 1 more.
Is there a fix for CVE-2026-33120?
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-2026-33120 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-33120?
Check whether you run Microsoft Sql Server 2016, Microsoft Sql Server 2017, Microsoft Sql Server 2019 or one of the others listed 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 vulnerability exists in Microsoft SQL Server due to an untrusted pointer dereference (CWE-822). An attacker with low-privileged credentials can exploit this flaw over a network connection without any user interaction. Successful exploitation allows for remote code execution in the context of the SQL Server service. The vulnerability affects multiple versions including SQL Server 2016 through 2025. Microsoft has released security updates to address this issue across the affected versions.

Affected products

  • Microsoft SQL Server 2016 13.0.6300.2 - 13.0.6485.1, 13.0.7000.253 - 13.0.7080.1
  • Microsoft SQL Server 2017 14.0.1000.169 - 14.0.2105.1, 14.0.3006.16 - 14.0.3525.1
  • Microsoft SQL Server 2019 15.0.2000.5 - 15.0.2165.1, 15.0.4003.23 - 15.0.4465.1
  • Microsoft SQL Server 2022 16.0.1000.6 - 16.0.1175.1, 16.0.4003.1 - 16.0.4250.1
  • Microsoft SQL Server 2025 17.0.1000.7 - 17.0.1110.1, 17.0.4006.2 - 17.0.4030.1

Timeline

  • 2026-04-14: disclosed
  • 2026-04-14: advisory: Microsoft released the security update guide for this vulnerability.

References

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