CVE-2026-92693: falha de alta gravidade em pavel-odintsov fastnetmon
FastNetMon: IPv6 Fragment header dereferenced without bounds check in shared packet parser
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.2epss 0.3%
FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, parse_raw_packet_to_simple_packet_full() in src/simple_packet_parser_ng.cpp dereferences ipv6_extension_header_fragment_t when IpProtocolNumberIPV6_FRAG is present without first verifying that the eight-byte Fragment header remains. A crafted sFlow v5 RAW_PACKET_HEADER record can remotely reach this shared parser with the Fragment bytes omitted, causing an unauthenticated remote out-of-bounds read. The supplied harness detects the read under AddressSanitizer, but the advisory does not establish a production process crash. No fixed release is available as of this review.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Produtos afetados
pavel-odintsov · fastnetmonCVEs relacionadas — pavel-odintsov fastnetmon
No mesmo produto, das mais perigosas para as menos.
CVE-2026-92697HIGHFastNetMon: NetFlow v9 unbounded strlen() on interface-description field causes remote out-of-bounds readEPSS 1.1%CVE-2026-92698HIGHFastNetMon: sFlow header_size field trusted as parser capture length causes remote out-of-bounds readEPSS 0.3%CVE-2026-93424HIGHFastNetMon: NetFlow/IPFIX template cache returns unlocked pointers, causing heap-use-after-free on multi-port deploymentsEPSS 0.3%CVE-2026-92695HIGHFastNetMon: Legacy pcap parse_packet() has no bounds checking, causing out-of-bounds read on truncated framesEPSS 0.3%CVE-2026-92694MEDIUMFastNetMon: IPv6 host counters map iterated without lock, racing concurrent insertsEPSS 0.2%