CVE-2026-33120 Microsoft SQL Server Remote Code Execution Vulnerability

High 8.8 Published 14 Apr 2026 Updated 15 Oct 2026

An authorized attacker can execute arbitrary code remotely via an untrusted pointer dereference in Microsoft SQL Server.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-33120?

CVE-2026-33120 is a high-severity vulnerability in Microsoft Sql Server 2016, published on 14 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Untrusted pointer dereference in SQL Server allows an authorized attacker to execute code over a network.

Weakness: CWE-822

Which versions are affected by CVE-2026-33120?

It affects 5 products.

Products include Microsoft Sql Server 2016, Microsoft Sql Server 2017, Microsoft Sql Server 2019, Microsoft Sql Server 2022, Microsoft Sql Server 2025.

How do I fix CVE-2026-33120?

No fix has been published for CVE-2026-33120 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-33120 being exploited?

There is no known exploitation of CVE-2026-33120 in the wild and no public exploit code.

All Microsoft Sql Server 2016 vulnerabilities

Sources

Also known as GHSA-9xc5-8cgr-5wjf.