{
  "schemaVersion": "guard-threat-campaign/v1",
  "id": "HGTC-2026-26BFDFE4",
  "slug": "cve-2026-0799-libpcap-bpf-rpcap-1-10-7",
  "title": "libpcap crafted BPF filters can walk process memory",
  "aliases": [
    "CVE-2026-0799",
    "libpcap BPF rpcap"
  ],
  "summary": "Crafted BPF filters can cause libpcap to walk process memory (rpcap / filter handling). Operators should upgrade to the fixed libpcap release cited by the vendor/NVD for their train.",
  "status": "published",
  "severity": "critical",
  "confidence": "medium",
  "uncertainty": "Exact fixed version must be confirmed against NVD/vendor for your libpcap package train.",
  "firstObservedAt": "2026-09-05T00:00:00.000Z",
  "lastObservedAt": "2026-09-05T12:00:00.000Z",
  "publishedAt": "2026-09-20T20:00:44.518Z",
  "reviewedAt": "2026-09-20T20:00:40.083Z",
  "expiresAt": "2026-09-05T12:00:00.000Z",
  "reviewer": "HOL Guard Security Publishing",
  "sources": [
    {
      "id": "nvd",
      "label": "NVD CVE-2026-0799",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0799",
      "sourceType": "vulnerability_database",
      "observedAt": "2026-09-05T12:00:00.000Z"
    },
    {
      "id": "hol-blog",
      "label": "HOL Guard operator write-up",
      "url": "https://hol.org/blog/cve-2026-0799-libpcap-bpf-rpcap-1-10-7",
      "sourceType": "other_primary",
      "observedAt": "2026-09-05T12:00:00.000Z"
    },
    {
      "id": "cveorg",
      "label": "CVE Record CVE-2026-0799",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-0799",
      "sourceType": "vulnerability_database",
      "observedAt": "2026-09-05T12:00:00.000Z"
    }
  ],
  "artifacts": [
    {
      "id": "libpcap",
      "artifactClass": "package",
      "ecosystem": "generic",
      "name": "libpcap",
      "version": null,
      "defanged": false
    }
  ],
  "indicators": [],
  "timeline": [
    {
      "id": "disclosure",
      "occurredAt": "2026-09-05T00:00:00.000Z",
      "eventType": "disclosure",
      "summary": "CVE-2026-0799 disclosed for libpcap BPF/rpcap memory walk.",
      "sourceIds": [
        "nvd",
        "cveorg"
      ]
    },
    {
      "id": "hol-publish",
      "occurredAt": "2026-09-05T12:00:00.000Z",
      "eventType": "other",
      "summary": "HOL Guard published operator blog coverage for CVE-2026-0799.",
      "sourceIds": [
        "hol-blog"
      ]
    }
  ],
  "coverage": [],
  "policies": [],
  "limitations": [
    "Pack lacked detailed fixed-version list; confirm against NVD/distro advisories.",
    "Impact depends on bpf/rpcap exposure in your capture stack.",
    "HOL blog is operator guidance, not a substitute for upstream advisories."
  ],
  "correctionHref": "/guard/security/campaigns/cve-2026-0799-libpcap-bpf-rpcap-1-10-7/corrections"
}