CVE-2026-65667

CRITICAL

Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.

CVSS v3.1 Score

10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Published: 8/7/2026Modified: 8/7/2026

Related Intelligence (1)

CRITICALVulnerability

NVD CRITICAL: CVE-2026-65667 — Missing authorization in Microsoft Teams allows an unauthorized attacker to elev...

Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-65667
NIST NVD

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65667