{"affected": [{"affectedData": [{"product": "Buffalo network devices", "vendor": "BUFFALO INC.", "versions": [{"status": "affected", "version": "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."}]}], "source": "vultures@jpcert.or.jp"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:buffalo:wzr-300hp_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "987542D2-0324-4EAC-B286-8890DEC17054", "versionEndIncluding": "2.00", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:buffalo:wzr-300hp:-:*:*:*:*:*:*:*", "matchCriteriaId": "80FFBDA4-E1A4-46CC-8EE0-6C92CB5C0A03", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:buffalo:wzr-450hp_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "D05D42D1-9A42-4C9B-9EE2-26A2470C3548", "versionEndIncluding": "2.00", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:buffalo:wzr-450hp:-:*:*:*:*:*:*:*", "matchCriteriaId": "6014747F-30BA-4C65-8340-CA16C886A45B", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:buffalo:wzr-600dhp_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "BE46751B-8FA3-4D8C-AC9D-F5E8025565B8", "versionEndIncluding": "2.00", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:buffalo:wzr-600dhp:-:*:*:*:*:*:*:*", "matchCriteriaId": "06AF9040-7F63-4E80-82DD-7448320BC940", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:buffalo:wzr-900dhp_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "F3669EA6-95FC-4C23-9B48-6FD85011125F", "versionEndIncluding": "1.15", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:buffalo:wzr-900dhp:-:*:*:*:*:*:*:*", "matchCriteriaId": "B8BD47F3-29D0-4B34-A346-C0042FBD75ED", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:buffalo:hw-450hp-zwe_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "E9623821-D3F8-46C3-8B85-CBD86B8BC1D9", "versionEndIncluding": "2.00", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:buffalo:hw-450hp-zwe:-:*:*:*:*:*:*:*", "matchCriteriaId": "54BE2F24-8A3F-426F-B935-62F82F83E457", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:buffalo:wzr-450hp-cwt_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "203244A3-B02D-4E16-A2C9-DE7BB015A299", "versionEndIncluding": "2.00", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:buffalo:wzr-450hp-cwt:-:*:*:*:*:*:*:*", "matchCriteriaId": "348D05E5-E619-4AE9-8A62-DF214899DB17", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:buffalo:wzr-450hp-ub_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "891A733D-5D0C-4B2C-A8AF-5DDE7D6EC83F", "versionEndIncluding": "2.00", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:buffalo:wzr-450hp-ub:-:*:*:*:*:*:*:*", "matchCriteriaId": "C5923DA5-CF09-408D-BE0D-A878EFB8BB6B", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:buffalo:wzr-600dhp2_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "5C50F463-0017-4C5F-95CB-D5927ED52346", "versionEndIncluding": "1.15", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:buffalo:wzr-600dhp2:-:*:*:*:*:*:*:*", "matchCriteriaId": "9271B665-2267-4C24-92FD-B1CBCB2F0F59", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:buffalo:wzr-d1100h_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "7DE80A3F-C286-46F6-A318-D0D3E0216B5E", "versionEndIncluding": "2.00", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:buffalo:wzr-d1100h:-:*:*:*:*:*:*:*", "matchCriteriaId": "79BB1A7E-19AD-4897-B20F-03BDA7DCFA8C", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "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."}, {"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": [{"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", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"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", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-34840", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-23T16:09:25.218732Z", "version": "2.0.3"}}]}, "published": "2022-12-07T10:15:10.303", "references": [{"source": "vultures@jpcert.or.jp", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/vu/JVNVU92805279/index.html"}, {"source": "vultures@jpcert.or.jp", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.buffalo.jp/news/detail/20221003-01.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://jvn.jp/en/vu/JVNVU92805279/index.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.buffalo.jp/news/detail/20221003-01.html"}], "sourceIdentifier": "vultures@jpcert.or.jp", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-798"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-798"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}
CVE record
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EUVD