Tracker / CVE-2026-56191
CVE-2026-56191
Critical 10.0
Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tampering over a network.
Affected products and versions
| microsoft | exchange_online |
|---|
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.