CVE-2026-93424 FastNetMon: NetFlow/IPFIX template cache returns unlocked pointers, causing heap-use-after-free on multi-port deployments

FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, peerfindtemplate in src/netflowplugin/netflowcollector.cpp and src/netflowplugin/netflowv9collector.cpp returns a pointer into globalnetflow9templates after releasing the cache mutex. On deployments with at...

CVE-2026-93424

The high-performance DDoS detector FastNetMon versions 1.2.9 and earlier is vulnerable to a heap-use-after-free condition. The root cause lies in the peer_find_template() function within src/netflow_plugin/netflow_collector.cpp and src/netflow_plugin/netflow_v9_collector.cpp, which returns a poin...