CVE-2026-48579
Microsoft Exchange Online Information Disclosure Vulnerability
CVSS Score
9.1
EPSS Score
0.1%
EPSS Percentile
27th
Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.
| Vendor | microsoft |
| Product | microsoft exchange online |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Jun 4, 2026 |
| Last Updated | Jun 9, 2026 |
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CVSS v3 Breakdown
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 Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Microsoft Exchange Online
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