Microsoft: >> Skype For Business >> 2015 Security Vulnerabilities
Skype for Business and Lync Remote Code Execution Vulnerability
CVSS Score
7.2
EPSS Score
0.014
Published
2022-07-12
An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access.
To exploit this vulnerability, an attacker would need to modify the token.
The update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens.
CVSS Score
9.8
EPSS Score
0.099
Published
2020-07-14
A spoofing vulnerability exists when a Skype for Business 2015 server does not properly sanitize a specially crafted request, aka "Skype for Business 2015 Spoofing Vulnerability." This affects Skype.
CVSS Score
5.4
EPSS Score
0.004
Published
2019-01-17