CVE-2026-33823

Microsoft Team Events Portal Information Disclosure Vulnerability

Published May 7, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:teams:-:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.
Title Microsoft Team Events Portal Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft teams
Weaknesses CWE-285
CPEs cpe:2.3:a:microsoft:teams:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft teams
References
Metrics cvssV3_1

{'score': 9.6, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Aug 10, 2026, 3:13 PM
Reserved
Mar 24, 2026, 12:52 AM
Status
Analyzed
Published
May 7, 2026, 10:16 PM
Modified
Oct 26, 2026, 12:10 AM