CVE-2021-42305
No fix known EPSS 8%CVSS 6.5
Microsoft Exchange Server Spoofing Vulnerability
Products: Microsoft Exchange Server 2013 Cumulative Update 23, Microsoft Exchange Server 2016 Cumulative Update 21, Microsoft Exchange Server 2016 Cumulative Update 22, Microsoft Exchange Server 2019 Cumulative Update 10, Microsoft Exchange Server 2019 Cumulative Update 11