CVE-2026-85873
Skype for Business Elevation of Privilege Vulnerability
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
Improper authorization in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over a network.
| Vendor | microsoft |
| Product | skype for business server 2015 cu13 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Oct 13, 2026 |
| Last Updated | Oct 13, 2026 |
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CVSS v3 Breakdown
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 Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Skype for Business Server 2015 CU13
9319.0 < 6.0.9319.886
Microsoft / Skype for Business Server 2019 CU8
2046.0 < 7.0.2046.583
Microsoft / Skype for Business Server Subscription Edition CU1
2046.0 < 7.0.2046.889
Microsoft / Skype for Business Server Subscription Edition RTM
1.0.0 < 7.0.2046.889