CVE-2026-101983

Estado: Pendiente de análisisCrítica (9.3)—

Gravedad9.3Crítica · CVSS 4.0

Probabilidad de explotación0.54 %mayor que el 44 % de las CVE

Explotación activaNono figura en el catálogo de CISA

Exploit públicoNo conocidosin código público localizado

Una vulnerabilidad de desbordamiento de búfer basado en pila en el proceso httpd de Juniper Networks Junos OS y Junos OS Evolved permite a un atacante de red no autenticado provocar la ejecución remota de código y una denegación de servicio mediante un dominio virtual de J-Web configurado.

Traducción automática del texto original de NVD (en inglés).

CVSS

Puntuación base: 9.3
Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/E:X/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:X/R:X/V:X/RE:X/U:X

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.54 %
Percentil entre todas las CVEs puntuadas: 44
Fecha de la puntuación: 20/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access95 %
Impacto principalT1059 Command and Scripting Interpreterexecution80 %
Impacto secundarioT1499 Endpoint Denial of Serviceimpact85 %

Vector AV:N/PR:N/UI:N: explotación remota sin autenticación ni interacción; el texto describe ejecución remota de código y denegación de servicio vía desbordamiento en httpd.

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

Privileged Account Management Filter Network Traffic Vulnerability Scanning Restrict Web-Based Content Network Segmentation Limit Software Installation

Tecnologías afectadas (2)

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

Juniper — Junos OS^AI Juniper — Junos OS Evolved^AI

CWE

CWE-121

Referencias

Mostrar las 1 referencias

https://supportportal.juniper.net/JSA112187

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-101983",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-101983",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-14T00:00:00+00:00"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "sirt@juniper.net",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "sirt@juniper.net",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 9.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L/E:X/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:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "LOW",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "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": "sirt@juniper.net",
      "affectedData": [
        {
          "vendor": "Juniper Networks",
          "product": "Junos OS",
          "versions": [
            {
              "status": "affected",
              "version": "23.4",
              "lessThan": "23.4R2-S8.13",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "24.2",
              "lessThan": "24.2R2-S5.5",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "24.4",
              "lessThan": "24.4R2-S5",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "25.2",
              "lessThan": "25.2R2-S2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "25.4",
              "lessThan": "25.4R1-S3",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "26.2",
              "lessThan": "26.2R1-S2",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Juniper Networks",
          "product": "Junos OS Evolved",
          "versions": [
            {
              "status": "affected",
              "version": "23.4",
              "lessThan": "23.4R2-S8.11-EVO",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "24.2",
              "lessThan": "24.2R2-S5.6-EVO",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "24.4",
              "lessThan": "24.4R2-S5-EVO",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "25.2",
              "lessThan": "25.2R2-S2-EVO",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "25.4",
              "lessThan": "25.4R1-S3-EVO",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "26.2",
              "lessThan": "26.2R1-S2-EVO",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "23.4X100",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "25.2X100",
              "lessThan": "25.2X100-D35-EVO",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "25.4X300",
              "lessThan": "25.4X300-D40-EVO",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-10-14T18:17:13.293",
  "references": [
    {
      "url": "https://supportportal.juniper.net/JSA112187",
      "source": "sirt@juniper.net"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "sirt@juniper.net",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Stack-based Buffer Overflow vulnerability in the httpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to cause remote code execution and denial of service via a J-Web virtual-domain configured."
    }
  ],
  "lastModified": "2026-10-15T16:24:19.073",
  "sourceIdentifier": "sirt@juniper.net"
}