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CVE-2026-66305

nvd nist
Published: Sep 8, 2026Modified: Sep 8, 2026

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7.1
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Exploitability: 2.8 / Impact: 4.2
Source: secure@microsoft.com

Description

Use of client-side authentication in Skype for Business allows an authorized attacker to perform spoofing over a network.

Related CWEs

CWE-603
Use of Client-Side Authentication
A client/server product performs authentication within client code but not in server code, allowing server-side authentication to be bypassed via a modified client that omits the authentication check.

References (1)

Source: secure@microsoft.com

Timeline

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