FKIE_CVE-2025-23020

Vulnerability from fkie_nvd - Published: 2025-02-20 03:15 - Updated: 2026-04-15 00:35
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
An issue was discovered in Kwik before 0.10.1. A hash collision vulnerability (in the hash table used to manage connections) 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).
References
cve@mitre.orghttps://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory
cve@mitre.orghttps://github.com/ptrd/kwik/releases/tag/v0.10.1
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Kwik before 0.10.1. A hash collision vulnerability (in the hash table used to manage connections) 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)."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en Kwik antes de 0.10.1. Una vulnerabilidad de colisi\u00f3n hash (en la tabla hash utilizada para administrar conexiones) permite a los atacantes remotos causar una carga de CPU considerable en el servidor (un ataque de hash DOS) al iniciar conexiones con ID de conexi\u00f3n de origen colisionales (SCID)."
    }
  ],
  "id": "CVE-2025-23020",
  "lastModified": "2026-04-15T00:35:42.020",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-02-20T03:15:12.630",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/ptrd/kwik/releases/tag/v0.10.1"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-407"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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