{"id":"CVE-2026-6554","revision":"a0de86bab0c341098fd4557e97b5f9d1","records":[{"revision":"a0de86bab0c341098fd4557e97b5f9d1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-6554","aliases":[],"title":"infinte loop in libpcap before 1.10.7","description":"libpcap BPF interpreter treats the offset in the 'ja L' BPF instruction as a signed integer to implement looping via backward jumps, but it does not limit the number of loop iterations.  A crafted filter program or the 'protochain' primitive used on a crafted network packet can cause the interpreter to loop infinitely.","state":0,"publishedAt":"2026-09-05T18:51:02.338+00:00","modifiedAt":"2026-10-22T20:08:13.106+00:00","affected":[{"ecosystem":"Vendor product","name":"libpcap","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"modules\": [\n                        \"BPF interpreter\"\n                    ],\n                    \"product\": \"libpcap\",\n                    \"programFiles\": [\n                        \"bpf_filter.c\"\n                    ],\n                    \"programRoutines\": [\n                        {\n                            \"name\": \"pcapint_filter_with_aux_data()\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/the-tcpdump-group/libpcap/\",\n                    \"vendor\": \"The Tcpdump Group\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"1.10.7\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/the-tcpdump-group/libpcap/commit/ff3c83475ac303c6b681c52ad0b6e14795a8e0ce"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-6554","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-6554","identifiers":["CVE-2026-6554"]},"retained":false,"historicalAffected":[]}],"coverage":[]}