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CVE-2025-24947

Estado: AplazadaMedia (5.3)—

A hash collision vulnerability (in the hash table used to manage connections) in LSQUIC (aka LiteSpeed QUIC) before 4.2.0 allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs). This is caused by XXH32 usage.

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.

Litespeedtech — LsquicAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-24947",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-24947",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-02-20T20:18:13.503625Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@mitre.org",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "litespeedtech",
          "product": "LSQUIC",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "4.2.0",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-02-20T03:15:12.943",
  "references": [
    {
      "url": "https://github.com/litespeedtech/lsquic/releases/tag/v4.2.0",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://xxhash.com",
      "source": "cve@mitre.org"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@mitre.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-407"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A hash collision vulnerability (in the hash table used to manage connections) in LSQUIC (aka LiteSpeed QUIC) before 4.2.0 allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs). This is caused by XXH32 usage."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de colisión hash (en la tabla hash utilizada para administrar conexiones) en LSQUIC (también conocido como Litespeed Quic) antes de 4.2.0 permite a los atacantes remotos causar una carga de CPU considerable en el servidor (un ataque con hash DOS) al iniciar conexiones con la conexión de fuente colidía IDS (SCID). Esto es causado por el uso XXH32."
    }
  ],
  "lastModified": "2026-06-17T08:59:52.250",
  "sourceIdentifier": "cve@mitre.org"
}