CVE-2026-65669 Microsoft SQL Server Elevation of Privilege Vulnerability

Critical 9.6 Published 8 Sep 2026 Updated 14 Oct 2026

An injection vulnerability in SQL Server Management Studio allows unauthorized attackers to elevate privileges over the network.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-65669?

CVE-2026-65669 is a critical vulnerability in Microsoft SQL Server Management Studio 22, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Improper neutralization of special elements in output used by a downstream component ('injection') in SQL Server allows an unauthorized attacker to elevate privileges over a network.

Weakness: CWE-74

Which versions are affected by CVE-2026-65669?

It affects 1 product.

Products include Microsoft Sql Server Management Studio.

How do I fix CVE-2026-65669?

No fix has been published for CVE-2026-65669 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-65669 being exploited?

There is no known exploitation of CVE-2026-65669 in the wild and no public exploit code.

Sources

Also known as GHSA-mqmp-r7vg-2hph.