{"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"}}}}

{}

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