CVE-2026-33823 CRITICAL

CVE-2026-33823: Microsoft Team Events Portal Information Disclosure Vulnerability

Vendor Microsoft
Product Microsoft Teams
Weakness CWE-285
Published May 7, 2026
Last update June 9, 2026
View on NVD All CVEs

CVSS base score

9.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.

Key dates

02Disclosure timeline

May 7, 2026 CVE published
June 9, 2026 Record updated