CVE-2009-4790: Multiple directory traversal vulnerabilities in Sysax Multi Server 4.5 allow remote authenticated users to...

Security readout for executives and security teams

This issue concerns Sysax Multi Server 4.5 and could let a logged-in remote FTP user access or alter files outside intended directories. The public record is thin and explicitly says the provenance is unknown, so urgency depends on whether this legacy product is still running and reachable. Exposure is most plausible where Sysax Multi Server 4.5 is deployed, FTP service is reachable, and untrusted or weakly controlled authenticated accounts exist. The sources do not establish exposure for other versions or products. Prioritize verification if the organization still uses Sysax Multi Server 4.5 or exposes legacy FTP services. Without confirmed deployment, active exploitation evidence, or severity scoring, this is an exposure-discovery item rather than an automatic emergency. Mitigation focus: Inventory systems for Sysax Multi Server 4.5 or legacy Sysax FTP deployments.; Restrict FTP access to trusted networks and necessary authenticated users only.; Check vendor and advisory guidance for fixed versions or supported upgrade paths..

Prepared

Jun 28, 2026, 02:49 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.