CVE-2026-65667
CRITICAL severity · CVSS 10 · Missing authorization
10CVSS CRITICAL
Summary
Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.