Elevation of Privilege Vulnerability in Microsoft Teams by Microsoft
CVE-2026-65667

10CRITICAL

Key Information:

Vendor

Microsoft
Status
Microsoft Teams
Vendor
CVE Published:
6 August 2026

What is CVE-2026-65667?

A missing authorization vulnerability in Microsoft Teams allows unauthorized attackers to elevate their privileges across a network. This issue can be exploited to gain higher access rights, posing significant risks to network integrity and user data. Organizations must implement the latest security patches to mitigate potential attacks.

Affected Version(s)

Microsoft Teams -

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.