PT-2026-87416 · Microsoft · Exchange Server 2016 Cumulative Update 23+3

CVE-2026-69378

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Published

2026-09-08

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Updated

2026-09-08

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Uncontrolled recursion in Microsoft Exchange Server allows an unauthorized attacker to deny service over a network.

Fix

Uncontrolled Recursion

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Weakness Enumeration

CWE-674

Related Identifiers

CVE-2026-69378

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