PT-2026-87418 · Microsoft · Exchange Server 2016 Cumulative Update 23+3

CVE-2026-69380

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Published

2026-09-08

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Updated

2026-09-08

CVSS v3.1

8.1

High

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Missing authorization in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Fix

Missing Authorization

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Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-69380

Affected Products

Exchange Server 2016 Cumulative Update 23
Exchange Server 2019 Cumulative Update 14
Exchange Server 2019 Cumulative Update 15
Exchange Server Subscription Edition Rtm