CVE-2026-92695High· 8.2▾ TwilightFastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, the live parse_packet() callback in src/pcap_plugin/pcap_collector.cpp is registered through pcap_loop and processes captured frames when pcap = on …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 45.1 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.3%
FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, the live parse_packet() callback in src/pcap_plugin/pcap_collector.cpp is registered through pcap_loop and processes captured frames when pcap = on without checking packethdr->caplen. A short frame or an attacker-controlled IPv4 header length can make the parser dereference IP or transport headers beyond the captured bytes, causing an out-of-bounds read and process termination. No fixed release is available as of this review.
fastnetmon <= 1.2.9Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-92693High· 8.2FastNetMon: IPv6 Fragment header dereferenced without bounds check in shared packet parser
CVE-2026-92698High· 8.2FastNetMon: sFlow header_size field trusted as parser capture length causes remote out-of-bounds read
CVE-2026-92697High· 7.5FastNetMon: NetFlow v9 unbounded strlen() on interface-description field causes remote out-of-bounds read
CVE-2026-92694Medium· 5.9FastNetMon: IPv6 host counters map iterated without lock, racing concurrent inserts
CVE-2026-93424High· 7.5FastNetMon: NetFlow/IPFIX template cache returns unlocked pointers, causing heap-use-after-free on multi-port deployments
CVE-2026-48695High· 8.1FastNetMon Community Edition through 1.2.9 contains an OS command injection vulnerability in the MikroTik router integration plugin