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CVE-2026-85873

6.5 medium SSVC exploitation: none Published
NVD · CVE.org

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

Fix

Microsoft's update · Important

  • KB5131692 — Skype for Business Server Subscription Edition CU1 · build 7.0.2046.889
  • KB5131693 — Skype for Business Server 2019 CU8 · build 7.0.2046.583
  • KB5132779 — Skype for Business Server 2015 CU13 · build 6.0.9319.886

From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-28 · Exploitation Less Likely.

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 2

  1. StatusUndergoing Analysis → PublishedNVD modified 2026-10-19 19:39
  2. First seenCVSS 6.5NVD modified 2026-10-13 21:19

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1