CVE-2026-92694 FastNetMon: IPv6 host counters map iterated without lock, racing concurrent inserts

FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, FastNetMon's IPv6 top-talkers screen-draw thread in drawtableipv6 in src/fastnetmonlogic.cpp iterates ipv6hostcounters.averagespeedmap without holding countermapmutex while recalculatespeed inserts new keys a...

CVE-2026-92694

FastNetMon , a high-performance DDoS detector and sensor, is vulnerable in version 1.2.9 and earlier due to a race condition in the IPv6 top-talkers screen-draw thread. Specifically, the draw_table_ipv6() function in src/fastnetmon_logic.cpp iterates over ipv6_host_counters.average_speed_map with...