CVE-2026-26117: Microsoft Arc Enabled Servers Azure Connected Machine Agent

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Authentication bypass using an alternate path or channel in Azure Windows Virtual Machine Agent allows an authorized attacker to elevate privileges locally.

Affected products

• Microsoft Arc Enabled Servers Azure Connected Machine Agent: from 1.0.0, before 1.61 (fixed in 1.61)

Published 2026-03-10. Last modified 2026-06-17.