CVE-2025-59530

{
  "id": "CVE-2025-59530",
  "sourceIdentifier": "[email protected]",
  "published": "2025-10-10T16:15:52.387",
  "lastModified": "2026-10-19T16:10:00.260",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames."
    },
    {
      "lang": "es",
      "value": "quic-go es una implementación del protocolo QUIC en Go. En versiones anteriores a la 0.49.0, 0.54.1 y 0.55.0, un servidor malintencionado o con comportamiento anómalo puede causar un ataque de denegación de servicio (DoS) en el cliente quic-go al desencadenar un fallo de aserción, lo que lleva a un bloqueo del proceso. Esto no requiere autenticación y puede ser explotado durante la fase de handshake. Esto se observó en la práctica con ciertas implementaciones de servidor. quic-go necesita poder manejar implementaciones de servidor con comportamiento anómalo, incluyendo aquellas que envían prematuramente un frame HANDSHAKE_DONE. Las versiones 0.49.0, 0.54.1 y 0.55.0 descartan las claves iniciales al recibir un frame HANDSHAKE_DONE, manejando así correctamente los frames HANDSHAKE_DONE prematuros."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "quic-go",
          "product": "quic-go",
          "versions": [
            {
              "version": "< 0.49.1",
              "status": "affected"
            },
            {
              "version": ">= 0.5.0, < 0.54.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-10-10T16:31:32.909241Z",
          "id": "CVE-2025-59530",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        },
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/quic-go/quic-go/blob/v0.55.0/connection.go#L2682-L2685",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/quic-go/quic-go/pull/5354",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/quic-go/quic-go/security/advisories/GHSA-47m2-4cr7-mhcw",
      "source": "[email protected]"
    }
  ]
}