CVE-2026-26117 Arc Enabled Servers - Azure Connected Machine Agent Elevation of Privilege Vulnerability
An authorized attacker can bypass authentication via an alternate path to elevate privileges locally on Azure Connected Machine Agents.
- 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-2026-26117?
CVE-2026-26117 is a high-severity authentication bypass vulnerability in Microsoft Arc Enabled Servers - Azure Connected Machine Agent, published on 10 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Authentication bypass using an alternate path or channel in Azure Windows Virtual Machine Agent allows an authorized attacker to elevate privileges locally.
Weakness: CWE-288
Which versions are affected by CVE-2026-26117?
It affects 1 product.
Products include Microsoft Arc Enabled Servers Azure Connected Machine Agent.
How do I fix CVE-2026-26117?
No fix has been published for CVE-2026-26117 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-26117 being exploited?
There is no known exploitation of CVE-2026-26117 in the wild and no public exploit code.
Sources
Also known as GHSA-76jf-fgc3-37rx.