{"id":"CVE-2026-6244","summary":"division by zero in libpcap before 1.10.7","details":"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.","modified":"2026-09-07T08:07:18.225379Z","published":"2026-09-05T18:50:39.649Z","database_specific":{"cna_assigner":"Tcpdump","cwe_ids":["CWE-369"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6244.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"fixed":"1.10.7"}]}]},"references":[{"type":"WEB","url":"https://github.com/the-tcpdump-group/libpcap/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6244.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6244"},{"type":"FIX","url":"https://github.com/the-tcpdump-group/libpcap/commit/98bb921b141aa642faedbf2ac510541c76499a19"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/the-tcpdump-group/libpcap","events":[{"introduced":"0"},{"fixed":"98bb921b141aa642faedbf2ac510541c76499a19"}],"database_specific":{"source":"REFERENCES"}}],"versions":["libpcap-1.10.6","libpcap-1.10.5","libpcap-1.10.4","libpcap-1.10.3","libpcap-1.10.2","libpcap-1.10.1","libpcap-1.10.0","libpcap-1.10-bp","libpcap-1.9-bp","libpcap-1.9.0-rc1","libpcap-1.8.1","libpcap-1.8.0-bp","libpcap-1.7.0-bp","libpcap-0.8-bp","libpcap-0.7.1","libpcap-0.6.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6244.json","vanir_signatures_modified":"2026-09-07T08:07:18Z","vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["159313938032546212003684998121585109708","294592371463506861657059557635689985636","55906513978301735793072472780949503808","35386386873072048673794717237347212394","331548429278841729283552281008994874665","189893898963607412963387224478886028236","277006527610900787260746397055557721780"],"threshold":0.9},"id":"CVE-2026-6244-4b8a6362","signature_type":"Line","signature_version":"v1","source":"https://github.com/the-tcpdump-group/libpcap/commit/98bb921b141aa642faedbf2ac510541c76499a19","target":{"file":"bpf_filter.c"}}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}