What’s Vulnerable › Vulnerabilities

CVE-2019-0798

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-04-09 · updated 2026-06-17
• Weakness: CWE-79

Description

A spoofing vulnerability exists when a Lync Server or Skype for Business Server does not properly sanitize a specially crafted request, aka 'Skype for Business and Lync Spoofing Vulnerability'.

Affected products

• Microsoft Lync Server: 2013
• Microsoft Skype for Business Server 2019 CU7: 2015
• Microsoft Lync Server 2013: July 2018 Update
• Microsoft Skype for Business Server 2015: March 2019 Update

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0798
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0798

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