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.

Compliance Impact

I don't know

Detection Guidance

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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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