.NET Denial of Service Vulnerability
CVE-2026-120796
Summary
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to perform tampering over a network.
Products covered
Microsoft Outlook for iOS
Remediation
See the Microsoft Security Update Guide for the update that applies to your product.
Vendor-listed fixes
5.2617.1
CVEs in this advisory 1
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.