What’s Vulnerable › Vulnerabilities

CVE-2018-8311

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 16.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-07-11 · updated 2026-06-17
• Weakness: CWE-20

Description

A remote code execution vulnerability exists when Skype for Business and Microsoft Lync clients fail to properly sanitize specially crafted content, aka "Remote Code Execution Vulnerability in Skype For Business and Lync." This affects Skype, Microsoft Lync.

Affected products

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

References

• http://www.securityfocus.com/bid/104624
• http://www.securitytracker.com/id/1041259
• http://www.securitytracker.com/id/1041260
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8311
• http://www.securityfocus.com/bid/104624
• http://www.securitytracker.com/id/1041259
• http://www.securitytracker.com/id/1041260
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8311

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