Threat actors attempt to exploit recently disclosed vulnerability CVE-2024-45519 in Synacor’s Zimbra Collaboration.Threat actors have been attempting to exploit the CVE-2024-45519 vulnerability to achieve remote code execution on vulnerable Zimbra instances.The vulnerability, discovered by security researcher Alan Li, is a remote code execution vulnerability in Zimbra mail servers.Users are advised to apply the latest versions of Zimbra Collaboration to protect against this vulnerability.