{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6244", "assignerOrgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896", "state": "PUBLISHED", "assignerShortName": "Tcpdump", "dateReserved": "2026-04-13T17:26:27.568Z", "datePublished": "2026-09-05T18:50:39.649Z", "dateUpdated": "2026-09-05T18:50:39.649Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "modules": ["BPF interpreter"], "product": "libpcap", "programFiles": ["bpf_filter.c"], "programRoutines": [{"name": "pcapint_filter_with_aux_data()"}], "repo": "https://github.com/the-tcpdump-group/libpcap/", "vendor": "The Tcpdump Group", "versions": [{"lessThan": "1.10.7", "status": "affected", "version": "0", "versionType": "semver"}]}], "configurations": [{"lang": "en", "value": "The problem is specific to applications that use pcap_offline_filter() or bpf_filter() with an externally-supplied compiled filter program without validating the program first."}], "credits": [{"lang": "en", "type": "finder", "value": "Denis Ovsienko"}], "descriptions": [{"lang": "en", "value": "libpcap BPF interpreter for the 'div #k' and 'mod #k' ALU instructions does not check whether the immediate value is zero. In particular uncommon use cases a crafted filter program can cause a division by zero."}], "exploits": [{"lang": "en", "value": "A functional exploit exists."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-369", "description": "CWE-369 Divide By Zero", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "cfdbb673-b408-4d03-89c1-c3d73ed80896", "shortName": "Tcpdump", "dateUpdated": "2026-09-05T18:50:39.649Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/the-tcpdump-group/libpcap/commit/98bb921b141aa642faedbf2ac510541c76499a19"}], "solutions": [{"lang": "en", "value": "Upgrade to libpcap 1.10.7."}], "source": {"discovery": "INTERNAL"}, "title": "division by zero in libpcap before 1.10.7", "workarounds": [{"lang": "en", "value": "Validate every filter program that has not been produced by a local call to pcap_compile()."}], "x_generator": {"engine": "cvelib 1.8.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "modules": ["BPF interpreter"], "product": "libpcap", "programFiles": ["bpf_filter.c"], "programRoutines": [{"name": "pcapint_filter_with_aux_data()"}], "repo": "https://github.com/the-tcpdump-group/libpcap/", "vendor": "The Tcpdump Group", "versions": [{"lessThan": "1.10.7", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@tcpdump.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "libpcap BPF interpreter for the 'div #k' and 'mod #k' ALU instructions does not check whether the immediate value is zero. In particular uncommon use cases a crafted filter program can cause a division by zero."}], "id": "CVE-2026-6244", "lastModified": "2026-09-05T19:16:55.950", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "security@tcpdump.org", "type": "Secondary"}]}, "published": "2026-09-05T19:16:55.950", "references": [{"source": "security@tcpdump.org", "url": "https://github.com/the-tcpdump-group/libpcap/commit/98bb921b141aa642faedbf2ac510541c76499a19"}], "sourceIdentifier": "security@tcpdump.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-369"}], "source": "security@tcpdump.org", "type": "Secondary"}]}

{}

{"created": "2026-09-05T21:00:05.102753+00:00", "updated": "2026-09-05T21:00:05.102761+00:00", "vendors": []}