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CVE-2026-9054

Estado: AplazadaCrítica (9.2)—

An attacker sending tcp, il, rudp, rudp, or gre packets with a length less than the header size would trigger a kernel panic.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad remota sin autenticación (AV:N/PR:N/UI:N) que causa negación de servicio por pánico del kernel al procesar paquetes de red malformados.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-9054",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-9054",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-22T16:11:35.411313Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "AUTOMATIC",
          "baseScore": 9.2,
          "Automatable": "YES",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:X/U:X",
          "exploitMaturity": "ATTACKED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9",
      "affectedData": [
        {
          "repo": "https://git.9front.org/plan9front/9front/HEAD/info.html",
          "vendor": "9front",
          "modules": [
            "networking stack"
          ],
          "product": "9front",
          "versions": [
            {
              "status": "affected",
              "version": "863431cff8b47fa20625f4cbee3ea4e92367b152",
              "lessThan": "70c97c334171c715df82774d1a47638abaca2db4",
              "versionType": "git"
            }
          ],
          "platforms": [
            "x86",
            "ARM",
            "64 bit",
            "32 bit"
          ],
          "packageName": "kernel",
          "programFiles": [
            "/sys/src/9/ip/il.c",
            "/sys/src/9/ip/rudp.c",
            "/sys/src/9/ip/udp.c",
            "/sys/src/9/ip/gre.c",
            "/sys/src/9/ip/tcp.c",
            "/sys/src/9/port/qio.c"
          ],
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "udpiput()"
            },
            {
              "name": "tcpiput()"
            },
            {
              "name": "rdpiput()"
            },
            {
              "name": "ilpullup()"
            },
            {
              "name": "greiput()"
            },
            {
              "name": "trimblock()"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-05-22T04:16:28.607",
  "references": [
    {
      "url": "https://git.9front.org/plan9front/9front/70c97c334171c715df82774d1a47638abaca2db4/commit.html",
      "source": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9"
    },
    {
      "url": "https://git.9front.org/plan9front/9front/7838d68969549f938cc8e80c0c2b4218cb12805c/commit.html",
      "source": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9"
    },
    {
      "url": "https://git.9front.org/plan9front/9front/f86917b75e9562f90545b7e484dbdcd748236952/commit.html",
      "source": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-130"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker sending tcp, il, rudp, rudp, or gre packets with a length less than the header size would trigger a kernel panic."
    },
    {
      "lang": "es",
      "value": "Un atacante que envía paquetes tcp, il, rudp, rudp o gre con una longitud menor que el tamaño de la cabecera desencadenaría un pánico del kernel."
    }
  ],
  "lastModified": "2026-07-23T16:10:00.137",
  "sourceIdentifier": "1d66c9f9-fff2-411a-aa19-ca6312fa25e9"
}