{"id":"CVE-2026-92698","published":"2026-11-05T23:17:02.633","lastModified":"2026-11-05T23:17:02.777","description":"FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, process_sflow_flow_sample() in src/sflow_plugin/sflow_collector.cpp passes the attacker-controlled sflow_raw_protocol_header_t.header_size to parse_raw_packet_to_simple_packet_full() as its trusted captured length without comparing it with the bytes remaining in the record. An inflated header_size creates a false end pointer beyond the received sFlow v5 UDP buffer, defeating the nested parser's bounds checks and causing an unauthenticated remote out-of-bounds read and process crash, with possible limited exposure of adjacent bytes through parsed flow fields. No fixed release is available as of this review.","cvssScore":8.2,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","cwes":["CWE-125"],"vendors":[],"products":[],"references":[{"url":"https://github.com/pavel-odintsov/fastnetmon/commit/6871b7383322db14405a8de1399a83da15ef3533","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/commit/be81c403b9aa891f8444a6379cd4a4fbbc324a83","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1089","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1093","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/security/advisories/GHSA-852r-3wcv-pjx2","tags":[]}],"exploitRefs":[{"url":"https://github.com/pavel-odintsov/fastnetmon/commit/6871b7383322db14405a8de1399a83da15ef3533","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/commit/be81c403b9aa891f8444a6379cd4a4fbbc324a83","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1089","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1093","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/security/advisories/GHSA-852r-3wcv-pjx2","tags":[]}],"hasPoc":true,"ai":null}