CVE-2026-48579
Analyzed Analyzed - Analysis Complete
Improper Authorization in Microsoft Exchange Online

Publication date: 2026-06-04

Last updated on: 2026-06-05

Assigner: Microsoft Corporation

Description
Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.
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Meta Information
Published
2026-06-04
Last Modified
2026-06-05
Generated
2026-06-25
AI Q&A
2026-06-05
EPSS Evaluated
2026-06-24
NVD
CVE-2026-48579
EUVD
EUVD-2026-34338
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft exchange_online *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-285 The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
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Executive Summary

This vulnerability involves improper authorization in Microsoft Exchange Online, which allows an unauthorized attacker to disclose information over a network.

Impact Analysis

The vulnerability can lead to unauthorized disclosure of sensitive information, potentially compromising confidentiality and leading to data breaches.

Compliance Impact

This vulnerability in Microsoft Exchange Online allows unauthorized attackers to disclose information over a network, which could lead to exposure of sensitive data.

Such unauthorized disclosure of information may impact compliance with data protection regulations and standards like GDPR and HIPAA, which require strict controls to protect personal and sensitive information.

However, specific details on how this vulnerability affects compliance with these standards are not provided.

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