{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92698","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-09-16T16:22:31.541Z","datePublished":"2026-11-05T22:35:58.969Z","dateUpdated":"2026-11-05T22:35:58.969Z"},"containers":{"cna":{"title":"FastNetMon: sFlow header_size field trusted as parser capture length causes remote out-of-bounds read","problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/pavel-odintsov/fastnetmon/security/advisories/GHSA-852r-3wcv-pjx2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pavel-odintsov/fastnetmon/security/advisories/GHSA-852r-3wcv-pjx2"},{"name":"https://github.com/pavel-odintsov/fastnetmon/pull/1089","tags":["x_refsource_MISC"],"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1089"},{"name":"https://github.com/pavel-odintsov/fastnetmon/pull/1093","tags":["x_refsource_MISC"],"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1093"},{"name":"https://github.com/pavel-odintsov/fastnetmon/commit/6871b7383322db14405a8de1399a83da15ef3533","tags":["x_refsource_MISC"],"url":"https://github.com/pavel-odintsov/fastnetmon/commit/6871b7383322db14405a8de1399a83da15ef3533"},{"name":"https://github.com/pavel-odintsov/fastnetmon/commit/be81c403b9aa891f8444a6379cd4a4fbbc324a83","tags":["x_refsource_MISC"],"url":"https://github.com/pavel-odintsov/fastnetmon/commit/be81c403b9aa891f8444a6379cd4a4fbbc324a83"}],"affected":[{"vendor":"pavel-odintsov","product":"fastnetmon","versions":[{"version":"<= 1.2.9","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-11-05T22:35:58.969Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-852r-3wcv-pjx2","discovery":"UNKNOWN"}}}}