CVE-2026-48579 PUBLISHED

Microsoft Exchange Online Information Disclosure Vulnerability

Assigner: microsoft
Reserved: 21.05.2026 Published: 04.06.2026 Updated: 04.06.2026

Improper authorization in Microsoft Exchange Online allows an unauthorized attacker to disclose information over a network.

Metrics

CVSS 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
CVSS Score: 9.1

Product Status

Vendor Microsoft
Product Microsoft Exchange Online
Versions
  • Version - is affected

References

Problem Types