FKIE_CVE-2022-34840

Vulnerability from fkie_nvd - Published: 2022-12-07 10:15 - Updated: 2026-06-17 04:51
Severity
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
Use of hard-coded credentials vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to alter?configuration settings of the device. The affected products/versions are as follows: WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, and WZR-D1100H firmware Ver. 2.00 and earlier.
References
vultures@jpcert.or.jphttps://jvn.jp/en/vu/JVNVU92805279/index.htmlThird Party Advisory
vultures@jpcert.or.jphttps://www.buffalo.jp/news/detail/20221003-01.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://jvn.jp/en/vu/JVNVU92805279/index.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.buffalo.jp/news/detail/20221003-01.htmlPatch, Vendor Advisory
Impacted products
Vendor Product Version
buffalo wzr-300hp_firmware *
buffalo wzr-300hp -
buffalo wzr-450hp_firmware *
buffalo wzr-450hp -
buffalo wzr-600dhp_firmware *
buffalo wzr-600dhp -
buffalo wzr-900dhp_firmware *
buffalo wzr-900dhp -
buffalo hw-450hp-zwe_firmware *
buffalo hw-450hp-zwe -
buffalo wzr-450hp-cwt_firmware *
buffalo wzr-450hp-cwt -
buffalo wzr-450hp-ub_firmware *
buffalo wzr-450hp-ub -
buffalo wzr-600dhp2_firmware *
buffalo wzr-600dhp2 -
buffalo wzr-d1100h_firmware *
buffalo wzr-d1100h -
To clipboard 

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          "vendor": "BUFFALO INC.",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use of hard-coded credentials vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to alter?configuration settings of the device. The affected products/versions are as follows: WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, and WZR-D1100H firmware Ver. 2.00 and earlier."
    },
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      "lang": "es",
      "value": "Una vulnerabilidad de uso de credenciales codificadas en m\u00faltiples dispositivos de red de Buffalo permite que un atacante adyacente a la red altere los ajustes de configuraci\u00f3n del dispositivo. Los productos/versiones afectados son los siguientes: WZR-300HP firmware Ver. 2.00 y anteriores, versi\u00f3n del firmware WZR-450HP. 2.00 y anteriores, versi\u00f3n del firmware WZR-600DHP. 2.00 y anteriores, versi\u00f3n del firmware WZR-900DHP. 1.15 y anteriores, versi\u00f3n del firmware HW-450HP-ZWE. 2.00 y anteriores, versi\u00f3n del firmware WZR-450HP-CWT. 2.00 y anteriores, versi\u00f3n del firmware WZR-450HP-UB. 2.00 y anteriores, versi\u00f3n del firmware WZR-600DHP2. 1.15 y anteriores, y la versi\u00f3n del firmware WZR-D1100H. 2.00 y antes."
    }
  ],
  "id": "CVE-2022-34840",
  "lastModified": "2026-06-17T04:51:01.663",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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            {
              "automatable": "no"
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            {
              "technicalImpact": "partial"
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          "role": "CISA Coordinator",
          "timestamp": "2025-04-23T16:09:25.218732Z",
          "version": "2.0.3"
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  "published": "2022-12-07T10:15:10.303",
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  "vulnStatus": "Modified",
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}



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Nomenclature

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