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CVE-2021-20636

Status: ModifiedMedium (6.5)—

Cross-site request forgery (CSRF) vulnerability in LOGITEC LAN-W300N/PR5B allows remote attackers to hijack the authentication of administrators via a specially crafted URL. As a result, unintended operations to the device such as changes of the device settings may be conducted.

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)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-20636",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
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  "affected": [
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      "affectedData": [
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          "vendor": "LOGITEC CORPORATION",
          "product": "LAN-W300N/PR5B",
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  "published": "2021-02-12T07:15:14.543",
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      "tags": [
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      "source": "vultures@jpcert.or.jp"
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  "vulnStatus": "Modified",
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      "description": [
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          "lang": "en",
          "value": "CWE-352"
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      ]
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  "descriptions": [
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      "lang": "en",
      "value": "Cross-site request forgery (CSRF) vulnerability in LOGITEC LAN-W300N/PR5B allows remote attackers to hijack the authentication of administrators via a specially crafted URL. As a result, unintended operations to the device such as changes of the device settings may be conducted."
    },
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      "lang": "es",
      "value": "Una vulnerabilidad de tipo cross-site request forgery (CSRF) en LOGITEC LAN-W300N/PR5B, permite a atacantes remotos secuestrar la autenticación de los administradores por medio de una URL especialmente diseñada. Como resultado, se pueden realizar operaciones no deseadas en el dispositivo, como cambios en la configuración del dispositivo"
    }
  ],
  "lastModified": "2026-06-17T03:34:09.740",
  "configurations": [
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