CVE-2014-9377: Heap-based buffer overflow in the nbns_spoof function in plug-ins/nbns_spoof/nbns_spoof.c in Ettercap 0.8.1...

Security readout for executives and security teams

CVE-2014-9377 affects Ettercap 0.8.1. A malformed large NetBIOS packet can trigger a heap buffer overflow in the NBNS spoofing plugin, potentially crashing the tool or enabling arbitrary code execution. Business risk is concentrated where legacy Ettercap is still used in security testing or network monitoring workflows. Exposure is likely limited to systems running vulnerable Ettercap builds with the NBNS spoof plugin used on reachable networks. This is less likely to affect typical servers, but security workstations, lab hosts, and assessment jump boxes may be exposed. Treat this as a targeted cleanup item for legacy security tooling, not a broad enterprise emergency. Prioritize remediation where Ettercap runs on shared or production-adjacent networks. Mitigation focus: Identify any installed Ettercap 0.8.1 or affected 0.8.x builds.; Apply vendor or distribution updates referenced by Gentoo and upstream Ettercap guidance.; Disable or avoid the NBNS spoofing plugin until patched..

Prepared

Jun 14, 2026, 05:41 UTC (UTC+00:00)

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