CVE Catalog
CVE-2026-48579
CriticalCVSS 9.1Exploitation Probability (EPSS)
Elevated risk1.02%
60th percentile - higher than 60% of all known CVEs
Summary
Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.
Risk Assessment
An attacker can access sensitive data stored in Exchange Online, potentially leading to privacy breaches and data leakage.
Recommendation
Check if Microsoft has released an update or fix for Exchange Online. Implement additional authentication mechanisms such as MFA and monitor for unusual activity.
Original NVD description (English source)
Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.