CVE-2021-26421

Skype for Business and Lync Spoofing Vulnerability

CVE-2021-26421 is fixed in 2 products on 1 platform, first by KB5003729, released May 11, 2021. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
6.5
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0141
72nd percentile

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Lync Server 2013 CU10 KB5003729 May 11, 2021
Skype for Business Server 2015 CU11 KB5003729 May 11, 2021

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