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Vulnerability record · CVE-2018-8546 · published 14 November 2018

CVE-2018-8546: Microsoft lync vulnerability

Microsoft · Lync

A denial of service vulnerability exists in Skype for Business, aka "Microsoft Skype for Business Denial of Service Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Lync, Skype.

5.9 CVSS 3.0 Medium EPSS 5.5% · top 7.5%
5.9CVSS 3.0 base score, v2 4.3
5.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A denial of service vulnerability exists in Skype for Business, aka "Microsoft Skype for Business Denial of Service Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Lync, Skype.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/105802 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042125 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8546 PatchVendor Advisory
http://www.securityfocus.com/bid/105802 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042125 Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8546 PatchVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-8546), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.