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CVE-2026-66306 Details

Description

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

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66306	[email protected]	PatchVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-209	Generation of Error Message Containing Sensitive Information	[email protected]

Affected Products

Product	Versions
microsoft skype for business server	2015 cumulative_update_13 2015 cumulative_update_13_hotfix_2 2019 cumulative_update_8 2019 cumulative_update_8_hotfix1 2019 cumulative_update_8_hotfix2
CPE cpe:2.3:a:microsoft:skype_for_business_server:2015:cumulative_update_13:::::: cpe:2.3:a:microsoft:skype_for_business_server:2015:cumulative_update_13_hotfix_2:::::: cpe:2.3:a:microsoft:skype_for_business_server:2019:cumulative_update_8:::::: cpe:2.3:a:microsoft:skype_for_business_server:2019:cumulative_update_8_hotfix1:::::: cpe:2.3:a:microsoft:skype_for_business_server:2019:cumulative_update_8_hotfix2:::::: Remediation No remediation found in references.
microsoft skype for business server subscription edition	7.0.2046.849
CPE cpe:2.3:a:microsoft:skype_for_business_server_subscription_edition:7.0.2046.849:::::::* Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 16, 2026	Initial Analysis	[email protected]
Sep 8, 2026	New CVE Received	[email protected]
Sep 8, 2026	CVE Modified	CISA-ADP