{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ff3c83475ac303c6b681c52ad0b6e14795a8e0ce"
            }
          ],
          "repo": "https://github.com/the-tcpdump-group/libpcap",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Tcpdump",
    "cwe_ids": [
      "CWE-835"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6554.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "1.10.7"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "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.  In particular uncommon use cases a crafted filter program can cause the interpreter to loop infinitely.",
  "id": "CVE-2026-6554",
  "modified": "2026-09-09T03:30:52.768473436Z",
  "published": "2026-09-05T18:51:02.338Z",
  "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-2026-6554.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6554"
    },
    {
      "type": "FIX",
      "url": "https://github.com/the-tcpdump-group/libpcap/commit/ff3c83475ac303c6b681c52ad0b6e14795a8e0ce"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "infinte loop in libpcap before 1.10.7"
}