CVE-2021-26421: Skype for Business and Lync Spoofing Vulnerability
Published May 11, 2021
·Updated
Skype for Business and Lync Spoofing Vulnerability
Affected Software
2 affected components
Microsoft Lync Server=2013-cumulative_update_10
Microsoft Skype for Business Server=2015-cumulative_update_11
Remediation
Event History
May 11, 2021
CVE Published
07:11 PM
Data Sourced
07:11 PM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2021-26421?
The severity of CVE-2021-26421 is high with a score of 6.5.
2
Which software is affected by CVE-2021-26421?
CVE-2021-26421 affects Microsoft Lync Server 2013 (Cumulative Update 10) and Microsoft Skype For Business Server 2015 (Cumulative Update 11).
3
What is the vulnerability description of CVE-2021-26421?
CVE-2021-26421 is a spoofing vulnerability in Skype for Business and Lync.
4
How do I fix CVE-2021-26421?
To fix CVE-2021-26421, apply the necessary security updates provided by Microsoft.
5
Where can I find more information about CVE-2021-26421?
You can find more information about CVE-2021-26421 at the following URL: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26421