Improper authorization in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over a network.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Fri, 16 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:skype_for_business_server_subscription_edition_rtm:*:*:*:*:*:*:*:*
Vendors & Products Microsoft skype For Business Server Subscription Edition Rtm

Wed, 14 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Improper authorization in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over a network.
Title Skype for Business Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft skype For Business Server 2015
Microsoft skype For Business Server 2019
Microsoft skype For Business Server Subscription Edition
Microsoft skype For Business Server Subscription Edition Rtm
Weaknesses CWE-639
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:*:*:*:*:*:*
cpe:2.3:a:microsoft:skype_for_business_server_subscription_edition_rtm:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft skype For Business Server 2015
Microsoft skype For Business Server 2019
Microsoft skype For Business Server Subscription Edition
Microsoft skype For Business Server Subscription Edition Rtm
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-16T23:24:09.646Z

Reserved: 2026-09-04T18:18:19.324Z

Link: CVE-2026-85873

cve-icon Vulnrichment

Updated: 2026-10-13T20:05:35.599Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-10-13T19:21:14.780

Modified: 2026-10-16T14:18:44.720

Link: CVE-2026-85873

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-14T08:00:07Z

Weaknesses