Description
Improper verification of cryptographic signature in Skype for Business allows an unauthorized attacker to perform spoofing over an adjacent network.
Published: 2026-09-08
Score: 8.3 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 08 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
Description Improper verification of cryptographic signature in Skype for Business allows an unauthorized attacker to perform spoofing over an adjacent network.
Title Skype for Business Spoofing Vulnerability
First Time appeared Microsoft
Microsoft skype For Business Server 2015
Microsoft skype For Business Server 2019
Microsoft skype For Business Server Subscription Edition
Weaknesses CWE-347
CPEs cpe:2.3:a:microsoft:skype_for_business_server_2015:*:cu13:*:*:*:*:*:*
cpe:2.3:a:microsoft:skype_for_business_server_2019:*:cu8:*:*:*:*:*:*
cpe:2.3:a:microsoft:skype_for_business_server_subscription_edition:*:cu1:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft skype For Business Server 2015
Microsoft skype For Business Server 2019
Microsoft skype For Business Server Subscription Edition
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C'}

Subscriptions

Microsoft Skype For Business Server 2015 Skype For Business Server 2019 Skype For Business Server Subscription Edition
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-09-08T18:33:11.399Z

Reserved: 2026-08-03T21:24:59.409Z

Link: CVE-2026-69646

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses