PT-2026-87396 · Microsoft · Exchange Server 2016 Cumulative Update 23+3

CVE-2026-69356

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Published

2026-09-08

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Updated

2026-09-08

CVSS v3.1

9.3

Critical

VectorAV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Fix

XSS

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Weakness Enumeration

Related Identifiers

CVE-2026-69356

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