Jun 2026: Microsoft Exchange Online Information Disclosure Vulnerability
CVE-2026-48579 Published on June 4, 2026
Microsoft Exchange Online Information Disclosure Vulnerability
Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-48579 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-48579
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Affected Versions
Microsoft Exchange Online Version - is affected by CVE-2026-48579Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.