CVE-2023-29356 Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability

High 7.8 Published 16 Jun 2023 Updated 28 Feb 2025

A use-after-free vulnerability in the Microsoft ODBC Driver for SQL Server allows remote attackers to execute arbitrary code.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-29356?

CVE-2023-29356 is a high-severity use after free vulnerability in Microsoft Sql Server, published on 16 Jun 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability

Weakness: CWE-416

Which versions are affected by CVE-2023-29356?

It affects 2 products.

Products include Microsoft Odbc Driver for Sql Server, Microsoft Sql Server.

How do I fix CVE-2023-29356?

No fix has been published for CVE-2023-29356 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2023-29356 being exploited?

There is no known exploitation of CVE-2023-29356 in the wild and no public exploit code.

All Microsoft Sql Server vulnerabilities

Sources

Also known as GHSA-jw33-cq36-qg29.