CVE-2026-65673 Microsoft Entra Connect Elevation of Privilege Vulnerability
An authorized attacker can exploit SQL injection in Microsoft Entra Connect Sync to elevate privileges locally.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-65673?
CVE-2026-65673 is a high-severity SQL injection vulnerability in Microsoft Entra Connect, published on 11 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Incorrect authorization in Microsoft Entra Connect Sync allows an authorized attacker to elevate privileges over a network.
Weakness: CWE-89
Which versions are affected by CVE-2026-65673?
It affects 1 product.
Products include Microsoft Entra Connect.
How do I fix CVE-2026-65673?
No fix has been published for CVE-2026-65673 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-65673 being exploited?
There is no known exploitation of CVE-2026-65673 in the wild and no public exploit code.
Sources
Also known as GHSA-m78c-8c5f-5prv.