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Medium · 6.5 CVE-2026-66308 EUVD-2026-73935GHSA-hwrf-3w89-xf2g

Skype for Business and Lync Denial of Service Vulnerability

Published Sep 8, 2026 · Updated Nov 10, 2026 · Assigned by microsoft

Description

Out-of-bounds read in Skype for Business allows an authorized attacker to deny service over a network.

Affected products

VendorProductAffectedFixed
Microsoft Skype for Business Server 2015 CU13 9319.0 – < 6.0.9319.885 6.0.9319.885
Microsoft Skype for Business Server 2019 CU8 2046.0 – < 7.0.2046.569 7.0.2046.569
Microsoft Skype for Business Server Subscription Edition CU1 2046.0 – < 7.0.2046.879 7.0.2046.879

Advisories 3

References