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CVE-2025-53114

Estado: AplazadaAlta (7.5)—

CometD is a scalable comet implementation for web messaging. In versions 5.0.0 through 5.0.22, 6.0.0 through 6.0.18, 7.0.0 through 7.0.18, and 8.0.0 through 8.0.8, bad clients that always send a fixed batch value when the server is using the acknowledgement extension may cause the unacknowledged message queue to grow indefinitely, eventually causing an `OutOfMemoryError`. Versions 5.0.23, 6.0.19, 7.0.19, and 8.0.9 patch the issue. As a workaround, disable the acknowledgement extension.

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.

CometD expuesto en red sin autenticación (AV:N, PR:N) permite envío de batches malformados causando DoS por agotamiento de memoria (OutOfMemoryError). Vector CVSS indica vulnerabilidad de disponibilidad (A:H) explotable remotamente.

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

Tecnologías afectadas (1)

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

Cometd — CometdAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-53114",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-53114",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-18T17:30:58.888648Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "cometd",
          "product": "cometd",
          "versions": [
            {
              "status": "affected",
              "version": ">= 5.0.0, < 5.0.23"
            },
            {
              "status": "affected",
              "version": ">= 6.0.0, < 6.0.19"
            },
            {
              "status": "affected",
              "version": ">= 7.0.0, < 7.0.19"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0, < 8.0.9"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-06-18T17:16:27.150",
  "references": [
    {
      "url": "https://github.com/cometd/cometd/discussions/2116",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cometd/cometd/issues/2117",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cometd/cometd/pull/2118",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cometd/cometd/pull/2168",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cometd/cometd/pull/2169",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cometd/cometd/security/advisories/GHSA-cqgj-h8vf-4w59",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "CometD is a scalable comet implementation for web messaging. In versions 5.0.0 through 5.0.22, 6.0.0 through 6.0.18, 7.0.0 through 7.0.18, and 8.0.0 through 8.0.8, bad clients that always send a fixed batch value when the server is using the acknowledgement extension may cause the unacknowledged message queue to grow indefinitely, eventually causing an `OutOfMemoryError`. Versions 5.0.23, 6.0.19, 7.0.19, and 8.0.9 patch the issue. As a workaround, disable the acknowledgement extension."
    },
    {
      "lang": "es",
      "value": "CometD es una implementación comet escalable para mensajería web. En las versiones 5.0.0 a 5.0.22, 6.0.0 a 6.0.18, 7.0.0 a 7.0.18 y 8.0.0 a 8.0.8, los clientes defectuosos que siempre envían un valor de lote fijo cuando el servidor está utilizando la extensión de acuse de recibo pueden hacer que la cola de mensajes no reconocidos crezca indefinidamente, lo que eventualmente causa un 'OutOfMemoryError'. Las versiones 5.0.23, 6.0.19, 7.0.19 y 8.0.9 parchean el problema. Como solución alternativa, deshabilite la extensión de acuse de recibo."
    }
  ],
  "lastModified": "2026-10-05T16:10:00.443",
  "sourceIdentifier": "security-advisories@github.com"
}