PT-2026-88284 · Microsoft · Skype For Business Server 2015 Cu13+2

CVE-2026-66305

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Published

2026-09-08

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Updated

2026-09-08

CVSS v3.1

7.1

High

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Use of client-side authentication in Skype for Business allows an authorized attacker to perform spoofing over a network.

Fix

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Weakness Enumeration

CWE-603

Related Identifiers

CVE-2026-66305

Affected Products

Skype For Business Server 2015 Cu13
Skype For Business Server 2019 Cu8
Skype For Business Server Subscription Edition Cu1