criticalSource: CISA
Zimbra Collaboration Suite (ZCS) OS Command Injection Vulnerability
Zimbra Collaboration Suite (ZCS) contains an OS command injection vulnerability which could allow an unauthenticated attacker to send specially crafted SMTP requests that may result in execution of arbitrary operating system commands as the Zimbra user.
Read at the sourceSummary written for cymesh.dev. The full article lives at CISA.
Referenced CVEs
This is what cymesh.net is for
Certificate and hostname problems are the ones you find out about from your users. cymesh.net finds them first.
monitorsTLS/SSL expiry, chain and hostnamealertsemail, ahead of the expiry datescopenon-intrusive, read-only checks