CVE Tools

CVE-2019-1029

Skype for Business and Lync Server Denial of Service Vulnerability

Published: Jun 12, 2019Updated: May 20, 2025 Sources: CVE List NVD BDUNVD-CWE-noinfo
5.9CVSSMEDIUM

Description

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 Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High

Weaknesses

Affected Products

microsoft corpcommercialUSOperating Systemsaka microsoft corporation

Exploitability

Official Patch Available

References

Timeline

Published
Jun 12, 2019
Last Updated
May 20, 2025

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