{"id":"CVE-2026-92698","aliases":[],"cve":{"records":[{"id":"CVE-2026-92698","source":"GitHub_M","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-16T16:22:31.541Z","published":"2026-11-05T22:35:58.969Z","modified":"2026-11-09T17:40:59.330Z"}],"publishers":[{"name":"GitHub_M","role":"CNA","organizationId":"a0819718-46f1-4df5-94e2-005712e83aaa","modified":"2026-11-05T22:35:58.969Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-09T17:40:59.330Z"}],"references":[{"url":"https://github.com/pavel-odintsov/fastnetmon/security/advisories/GHSA-852r-3wcv-pjx2","tags":["x_refsource_CONFIRM"],"source":"GitHub_M"},{"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1089","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1093","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/pavel-odintsov/fastnetmon/commit/6871b7383322db14405a8de1399a83da15ef3533","tags":["x_refsource_MISC"],"source":"GitHub_M"},{"url":"https://github.com/pavel-odintsov/fastnetmon/commit/be81c403b9aa891f8444a6379cd4a4fbbc324a83","tags":["x_refsource_MISC"],"source":"GitHub_M"}],"weaknesses":[{"id":"CWE-125","description":"CWE-125: Out-of-bounds Read","source":"GitHub_M"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-09T17:38:52.729611Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"FastNetMon: sFlow header_size field trusted as parser capture length causes remote out-of-bounds read","titleSource":"GitHub_M","descriptionSource":"GitHub_M","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.","score":8.2,"severity":"high","published":"2026-11-05T22:35:58.969Z","modified":"2026-11-09T17:40:59.330Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"pavel-odintsov","name":"fastnetmon","platforms":[],"versions":[{"version":"<= 1.2.9","status":"affected"}],"cpes":[],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-92698"}],"remediation":[],"references":["https://github.com/pavel-odintsov/fastnetmon/security/advisories/GHSA-852r-3wcv-pjx2","https://github.com/pavel-odintsov/fastnetmon/pull/1089","https://github.com/pavel-odintsov/fastnetmon/pull/1093","https://github.com/pavel-odintsov/fastnetmon/commit/6871b7383322db14405a8de1399a83da15ef3533","https://github.com/pavel-odintsov/fastnetmon/commit/be81c403b9aa891f8444a6379cd4a4fbbc324a83"],"sources":[{"name":"CVE","id":"CVE-2026-92698","modified":"2026-11-09T17:40:59.330Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-92698"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","score":8.2}],"sourceAffected":[],"observedAt":"2026-11-09T17:51:43.977Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T23:30:30.969Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-06T00:35:34.625Z","attemptedAt":"2026-11-06T00:35:34.625Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-06T00:35:34.979Z","attemptedAt":"2026-11-06T00:35:34.979Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-06T00:35:35.482Z","attemptedAt":"2026-11-06T00:35:35.482Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-06T00:35:34.378Z","attemptedAt":"2026-11-06T00:35:34.378Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-92698","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92698","modified":"2026-11-05T23:17:02.777","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","checkedAt":"2026-11-06T00:35:34.625Z"},{"source":"ENISA EUVD","id":"EUVD-2026-117874","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-117874","modified":"Nov 5, 2026, 10:35:58 PM","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","checkedAt":"2026-11-06T00:35:35.482Z"}],"aiSummary":{"text":"FastNetMon versions 1.2.9 and earlier have a vulnerability where the sFlow header_size field is trusted as the parser capture length, potentially causing a remote out-of-bounds read. An attacker with network access can exploit this weakness. The impact may include a process crash and limited exposure of adjacent bytes.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-05T23:56:29.273Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-92698"}]}}