Sep 2026: Skype for Business Information Disclosure Vulnerability
CVE-2026-66306 Published on September 8, 2026

Skype for Business Information Disclosure Vulnerability
Generation of error message containing sensitive information in Skype for Business allows an unauthorized attacker to disclose information over a network.

Vendor Advisory NVD

Weakness Type

Generation of Error Message Containing Sensitive Information

The software generates an error message that includes sensitive information about its environment, users, or associated data.


Products Associated with CVE-2026-66306

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Affected Versions

Microsoft Skype for Business Server 2015 CU13: Microsoft Skype for Business Server 2019 CU8: Microsoft Skype for Business Server Subscription Edition CU1: