VDB
CVE-2026-48579
CVE-2026-48579
PUBLISHED
CVSS 9.1 CRITICAL
Reported by microsoft · Published June 4, 2026
Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.
Risk Scores
CVSS 3.1
9.1
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
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Online | - |
| Microsoft | Microsoft Exchange Online | -, -, - |
| microsoft | exchange_online | -, -, - |
Timeline
- Jun 4, 2026 CVE Published
- Jun 5, 2026 EPSS Score
- Jun 5, 2026 Security Advisory
- Jun 6, 2026 Coalition ESS Score
- Jul 15, 2026 CVE Updated
References
- Microsoft Exchange Online Information Disclosure Vulnerability vendor-advisorypatch