Microsoft Office OneNote Remote Code Execution Vulnerability
CVE-2026-126526
Summary
Unintended proxy or intermediary in Azure Arc allows an authorized attacker to elevate privileges over a network.
Products covered
Azure ARC
Remediation
Separate remediation guidance was not included in the collected bulletin.
CVEs in this advisory 1
Update history
What changed in later vendor updates
SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.
- The vendor changed the advisory summary.
- CVSS changed from 10.0 to 9.9.
Updates
- Published by Microsoft Security Response Center
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.