CVE-2019-1029
MEDIUMLync Server - Denial of Service via Dial-in Link Call Flood
Title source: llmDescription
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.
References (2)
Core 2
Core References
Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1029
Vendor Advisory vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1029
Scores
CVSS v3
5.9
EPSS
0.0528
EPSS Percentile
91.7%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
Status
published
Products (2)
microsoft/lync_server
2010
microsoft/lync_server
2013
Published
Jun 12, 2019
Tracked Since
Feb 18, 2026