Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network.

Project Subscriptions

Vendors Products
Microsoft Subscribe
Exchange Server 2016 Subscribe
Exchange Server 2019 Subscribe
Exchange Server Se Subscribe
Microsoft Exchange Server 2016 Cumulative Update 23 Subscribe
Microsoft Exchange Server 2019 Cumulative Update 14 Subscribe
Microsoft Exchange Server 2019 Cumulative Update 15 Subscribe
Microsoft Exchange Server Subscription Edition Rtm Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 02 Oct 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft microsoft Exchange Server 2016 Cumulative Update 23
Microsoft microsoft Exchange Server 2019 Cumulative Update 14
Microsoft microsoft Exchange Server 2019 Cumulative Update 15
Microsoft microsoft Exchange Server Subscription Edition Rtm
Vendors & Products Microsoft microsoft Exchange Server 2016 Cumulative Update 23
Microsoft microsoft Exchange Server 2019 Cumulative Update 14
Microsoft microsoft Exchange Server 2019 Cumulative Update 15
Microsoft microsoft Exchange Server Subscription Edition Rtm

Fri, 02 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 02 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Weak authorization in Microsoft Exchange Server allows an authenticated attacker to elevate privileges over a network.
Title Microsoft Exchange Server Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft exchange Server 2016
Microsoft exchange Server 2019
Microsoft exchange Server Se
Weaknesses CWE-1390
CPEs cpe:2.3:a:microsoft:exchange_server_2016:*:cumulative_update_23:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_14:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_15:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft exchange Server 2016
Microsoft exchange Server 2019
Microsoft exchange Server Se
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-02T20:14:51.320Z

Reserved: 2026-09-23T20:35:19.927Z

Link: CVE-2026-96940

cve-icon Vulnrichment

Updated: 2026-10-02T20:14:47.451Z

cve-icon NVD

Status : Received

Published: 2026-10-02T19:16:43.023

Modified: 2026-10-02T21:16:58.060

Link: CVE-2026-96940

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-02T21:45:17Z

Weaknesses