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CVE-2026-31911

Estado: Pendiente de análisisMedia (5.5)—

libpcap BPF interpreter calls abort() if it encounters a BPF instruction that has an invalid opcode. In particular uncommon use cases a crafted filter program can terminate the OS process.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Tcpdump — LibpcapAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-31911",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-31911",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-08T15:13:04.564118Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@tcpdump.org",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@tcpdump.org",
      "affectedData": [
        {
          "repo": "https://github.com/the-tcpdump-group/libpcap/",
          "vendor": "The Tcpdump Group",
          "modules": [
            "BPF interpreter"
          ],
          "product": "libpcap",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.10.7",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "bpf_filter.c"
          ],
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "pcapint_filter_with_aux_data()"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-09-05T19:16:55.707",
  "references": [
    {
      "url": "https://github.com/the-tcpdump-group/libpcap/commit/a715bcdde830299cba4171514385cb17ec19b6e9",
      "source": "security@tcpdump.org"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@tcpdump.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "libpcap BPF interpreter calls abort() if it encounters a BPF instruction that has an invalid opcode.  In particular uncommon use cases a crafted filter program can terminate the OS process."
    }
  ],
  "lastModified": "2026-09-08T19:20:25.117",
  "sourceIdentifier": "security@tcpdump.org"
}