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CVE-2018-8546

• Severity: medium (CVSS 5.9 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-11-14 · updated 2026-06-17

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.

Affected products

• Microsoft Lync Server: 2013-sp1
• Microsoft Lync Basic: 2013-sp1
• Microsoft Office: 2019
• Microsoft Office 365 ProPlus: all versions
• Microsoft Skype for Business Server 2019 CU2: 2016
• Microsoft Skype for Business Basic: 2016
• Microsoft Lync Server: 2013 Service Pack 1 (32-bit), 2013 Service Pack 1 (64-bit), Basic 2013 Service Pack 1 (32-bit), Basic 2013 Service Pack 1 (64-bit)
• Microsoft Office: 2019 for 32-bit editions, 2019 for 64-bit editions
• Microsoft Skype: Business 2016 (32-bit), Business 2016 (64-bit), Business 2016 Basic (32-bit), Business 2016 Basic (64-bit)

References

• http://www.securityfocus.com/bid/105802
• http://www.securitytracker.com/id/1042125
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8546
• http://www.securityfocus.com/bid/105802
• http://www.securitytracker.com/id/1042125
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8546

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