CVE-2026-67379 Microsoft SQL Server Remote Code Execution Vulnerability
An authorized attacker can execute arbitrary code remotely via a stack-based buffer overflow 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-2026-67379?
CVE-2026-67379 is a high-severity memory corruption vulnerability in Microsoft Sql Server 2019, published on 8 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Stack-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Weakness: CWE-121
Which versions are affected by CVE-2026-67379?
It affects 3 products.
Products include Microsoft Sql Server 2019, Microsoft Sql Server 2022, Microsoft Sql Server 2025.
How do I fix CVE-2026-67379?
No fix has been published for CVE-2026-67379 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-67379 being exploited?
There is no known exploitation of CVE-2026-67379 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sql Server 2019
- CVE-2026-67378 Microsoft SQL Server Remote Code Execution Vulnerability
- CVE-2026-67636 Microsoft SQL Server Remote Code Execution Vulnerability
- CVE-2026-77484 Microsoft SQL Server Remote Code Execution Vulnerability
- CVE-2024-29047 Microsoft OLE DB Driver for SQL Server Remote Code Execution Vulnerability
- CVE-2025-49717 Microsoft SQL Server Remote Code Execution Vulnerability
Sources
Also known as GHSA-8833-9p3x-vwf3.