A critical vulnerability in Zimbra’s postjournal service, identified as CVE-2024-45519, has left over 19,600 public Zimbra installations exposed to remote code execution attacks. This vulnerability, with a CVSS score of 9.8, allows unauthenticated attackers to execute arbitrary commands on affected Zimbra installations, posing a significant threat to the security and integrity of these systems.

Source: GBHackers