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CVE-2019-20217

Status: ModifiedCritical (9.8)—

D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via the urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because SERVER_ID is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Dlink — Dir-859 Firmware

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2019-20217",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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  "affected": [
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  "published": "2020-01-29T03:15:14.267",
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  "vulnStatus": "Modified",
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          "lang": "en",
          "value": "CWE-78"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via the urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because SERVER_ID is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters."
    },
    {
      "lang": "es",
      "value": "Los dispositivos D-Link DIR-859 versiones 1.05 y 1.06B01 Beta01, permiten a atacantes remotos ejecutar comandos arbitrarios del Sistema Operativo por medio de la urn: en el método M-SEARCH en la función ssdpcgi() en el archivo /htdocs/cgibin, porque SERVER_ID se maneja inapropiadamente. El valor de la urn: service/device es verificado con la función strstr, lo que permite a un atacante concatenar comandos arbitrarios separados por metacaracteres de shell."
    }
  ],
  "lastModified": "2026-06-17T02:30:13.187",
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