CVE-2026-62896

CRITICAL CVSS 3.1: 9.6
Updated Aug 07, 2026
Microsoft
Parameter Value
CVSS 9.6 (CRITICAL)
Type CWE-287 (Improper Authentication)
Vendor Microsoft
Public PoC No

Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1