CVE-2019-1029
highpriority · track · 26EPSS 0.053 · 93 %ileEURUUSEPSS · scored 2026-10-27
A denial of service vulnerability exists in Skype for Business. An attacker who successfully exploited the vulnerability could cause Skype for Business to stop responding. Note that the denial of service would not allow an attacker to execute code or to elevate the attacker's user rights. To exploit the vulnerability, an attacker needs to obtain a dial-in link for a vulnerable server and then initiates a series of calls within a short amount of time. The update addresses the vulnerability by correcting the way that Skype for Business server handles objects in memory.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.4–7.1
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- http://www.microsoft.com/windows/default.mspxcnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1029cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1029cnnvd
- https://portal.msrc.microsoft.com/zh-CN/security-guidance/advisory/CVE-2019-1029Patchcnnvd
- https://vigilance.fr/vulnerability/Microsoft-Lync-Server-denial-of-service-29507cnnvd
- https://www.securityfocus.com/bid/108589cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1029enisa_euvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1029nvd
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