1. Home
  2. CVE Database
  3. CVE-2026-62896
CRITICAL · 9.6

CVE-2026-62896

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

Vulnerability Description

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

CVSS Score

9.6

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
MicrosoftTeams-

Related Weaknesses (CWE)

CWE-287

References

FAQ

What is CVE-2026-62896?

CVE-2026-62896 is a vulnerability with a CVSS score of 9.6 (CRITICAL). Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.

How severe is CVE-2026-62896?

CVE-2026-62896 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-62896?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Teams.