Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network.

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Solution

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Workaround

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History

Mon, 23 Feb 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Fri, 20 Feb 2026 17:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:teams:-:*:*:*:*:*:*:*

Thu, 19 Feb 2026 22:30:00 +0000

Type Values Removed Values Added
Description Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network.
Title Microsoft Teams Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft teams
Weaknesses CWE-284
CPEs cpe:2.3:a:microsoft:teams:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft teams
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-02-23T18:21:23.768Z

Reserved: 2025-12-30T18:10:54.847Z

Link: CVE-2026-21535

cve-icon Vulnrichment

Updated: 2026-02-23T18:21:18.731Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-19T23:16:24.217

Modified: 2026-02-20T17:39:46.743

Link: CVE-2026-21535

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-20T09:53:49Z

Weaknesses