CVE-2026-65667: Critical severity Microsoft Teams vulnerability
Published Aug 6, 2026
·Updated
Microsoft Teams Elevation of Privilege Vulnerability
Other sources
Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.
— Microsoft
Affected Software
1 affected component
Microsoft Teams
Event History
Aug 6, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
Frequently Asked Questions
1
What is the severity of CVE-2026-65667?
The severity of CVE-2026-65667 is critical with a score of 10.
2
What type of vulnerability is CVE-2026-65667?
CVE-2026-65667 is an elevation of privilege vulnerability in Microsoft Teams.
3
Who is affected by CVE-2026-65667?
CVE-2026-65667 affects users of Microsoft Teams that have not implemented adequate security controls.
4
How do I fix CVE-2026-65667?
To fix CVE-2026-65667, ensure that your Microsoft Teams is updated to the latest version provided by Microsoft.
5
What can an attacker do with CVE-2026-65667?
An attacker exploiting CVE-2026-65667 can elevate privileges and gain unauthorized access to sensitive data over a network.