CVE-2026-69380

high Microsoft
CVSS v3 Base Score
8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
None
Published: September 8, 2026 (2 days ago)
Last Modified: September 9, 2026
Vendor: Microsoft
Source: MITRE

Description

Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

CWE

CWE-862

Affected Products

Microsoft Microsoft Exchange Server 2016 Cumulative Update 23Microsoft Microsoft Exchange Server 2019 Cumulative Update 14Microsoft Microsoft Exchange Server 2019 Cumulative Update 15Microsoft Microsoft Exchange Server Subscription Edition RTM

References

🔗 msrc.microsoft.com