Description
Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.
Published: 2026-06-04
Score: 9.1 Critical
EPSS: 1.0% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 05 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 05 Jun 2026 17:00:00 +0000

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

Thu, 04 Jun 2026 22:45:00 +0000

Type Values Removed Values Added
Description Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.
Title Microsoft Exchange Online Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft exchange Online
Weaknesses CWE-285
CPEs cpe:2.3:a:microsoft:exchange_online:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft exchange Online
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Exchange Online
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-06-26T19:42:35.246Z

Reserved: 2026-05-21T20:00:35.246Z

Link: CVE-2026-48579

cve-icon Vulnrichment

Updated: 2026-06-05T20:05:34.986Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-04T23:17:32.830

Modified: 2026-06-05T16:51:00.523

Link: CVE-2026-48579

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-05T01:15:15Z

Weaknesses