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CVE-2022-26496

Estado: ModificadaCrítica (9.8)—

In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name.

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 (3)

Debian — Debian LinuxFedoraproject — FedoraNetwork Block Device Project — Network Block Device

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-26496",
  "cveTags": [],
  "metrics": {
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          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
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        "acInsufInfo": false,
        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
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      "description": [
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          "value": "CWE-787"
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      "value": "In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name."
    },
    {
      "lang": "es",
      "value": "En nbd-server en nbd versiones anteriores a 3.24, se presenta un desbordamiento del búfer en la región stack de la memoria. Un atacante puede causar un desbordamiento de búfer en el análisis del campo name enviando un mensaje NBD_OPT_INFO o NBD_OPT_GO diseñado con un valor grande como longitud del nombre"
    }
  ],
  "lastModified": "2026-06-17T04:35:18.033",
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}