CVE-2000-0978: bbd server in Big Brother System and Network Monitor before 1.5c2 allows remote attackers to execute arbitr...

Security readout for executives and security teams

Big Brother, a network monitoring tool from the early 2000s, had a flaw in its server component that let anyone on the network run commands on the monitoring host by sending a specially formatted request containing a shell metacharacter. Any organization still running an unpatched Big Brother monitor could have its monitoring server hijacked remotely. Exposure is limited to environments still operating legacy Big Brother monitors older than 1.5c2, which is a discontinued product from the early 2000s. Modern estates are unlikely to be affected, but any lingering deployment reachable on a network is at direct risk of remote command execution. Priority is low to moderate for most organizations because Big Brother is legacy software unlikely to be in modern estates. However, if any instance is discovered in production or on a lab segment, treat it as urgent: remote command execution on a monitoring host effectively grants attackers a foothold into infrastructure. Mitigation focus: Upgrade Big Brother to version 1.5c2 or later, or retire the software entirely.; Block inbound access to the bbd listener from untrusted networks at the firewall.; Run the bbd process as an unprivileged, sandboxed user to limit blast radius..

Prepared

Jul 11, 2026, 23:58 UTC (UTC+00:00)

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