CVE-2026-33823CWE-285

Microsoft Team Events Portal Information Disclosure Vulnerability

Critical · published May 7, 2026

CVSS v3.1
9.6
EPSS
1%
Percentile
58.2
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
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
CVSS v4.0
Not supplied
EPSS
0.00863 · 58.2th percentile
Weakness
CWE-285 · Improper Authorization
Published
2026-05-07T20:58Z
EPSS history
Timeline
  • 07 MAY 20:58Z
    Microsoft Team Events Portal Information Disclosure Vulnerability
    cvelistv5