CVE intelligence

CVE-2026-85873

Vulnerability intelligence

Published Oct 13, 2026Sources checked Oct 21, 2026

6.5MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2026-85873 and is rated Medium severity with a CVSS score of 6.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Oct 13, 2026

Install KB5131692. Install KB5131693. Install KB5132779.

Vendor-listed releases

7.0.2046.889
7.0.2046.583
6.0.9319.886

CISA KEVNot listedBased on the latest collected catalog

EPSS0.8%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-85873?

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

Source: NVD