CVE-2026-21535
Received Received - Intake
Improper Access Control in Microsoft Teams Enables Data Disclosure

Publication date: 2026-02-19

Last updated on: 2026-02-20

Assigner: Microsoft Corporation

Description
Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network.
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Meta Information
Published
2026-02-19
Last Modified
2026-02-20
Generated
2026-06-16
AI Q&A
2026-02-20
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21535
EUVD
EUVD-2026-7572
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft teams *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
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Impact Analysis

An attacker exploiting this vulnerability could gain unauthorized access to sensitive information transmitted over the network, potentially leading to data breaches and loss of confidentiality.

Executive Summary

This vulnerability is an improper access control issue in Microsoft Teams that allows an unauthorized attacker to disclose information over a network.

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