{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T12:16:42.125","vulnerabilities":[{"cve":{"id":"CVE-2021-20716","sourceIdentifier":"vultures@jpcert.or.jp","published":"2021-04-28T01:15:17.107","lastModified":"2024-11-21T05:47:03.950","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Hidden functionality in multiple Buffalo network devices (BHR-4RV firmware Ver.2.55 and prior, FS-G54 firmware Ver.2.04 and prior, WBR2-B11 firmware Ver.2.32 and prior, WBR2-G54 firmware Ver.2.32 and prior, WBR2-G54-KD firmware Ver.2.32 and prior, WBR-B11 firmware Ver.2.23 and prior, WBR-G54 firmware Ver.2.23 and prior, WBR-G54L firmware Ver.2.20 and prior, WHR2-A54G54 firmware Ver.2.25 and prior, WHR2-G54 firmware Ver.2.23 and prior, WHR2-G54V firmware Ver.2.55 and prior, WHR3-AG54 firmware Ver.2.23 and prior, WHR-G54 firmware Ver.2.16 and prior, WHR-G54-NF firmware Ver.2.10 and prior, WLA2-G54 firmware Ver.2.24 and prior, WLA2-G54C firmware Ver.2.24 and prior, WLA-B11 firmware Ver.2.20 and prior, WLA-G54 firmware Ver.2.20 and prior, WLA-G54C firmware Ver.2.20 and prior, WLAH-A54G54 firmware Ver.2.54 and prior, WLAH-AM54G54 firmware Ver.2.54 and prior, WLAH-G54 firmware Ver.2.54 and prior, WLI2-TX1-AG54 firmware Ver.2.53 and prior, WLI2-TX1-AMG54 firmware Ver.2.53 and prior, WLI2-TX1-G54 firmware Ver.2.20 and prior, WLI3-TX1-AMG54 firmware Ver.2.53 and prior, WLI3-TX1-G54 firmware Ver.2.53 and prior, WLI-T1-B11 firmware Ver.2.20 and prior, WLI-TX1-G54 firmware Ver.2.20 and prior, WVR-G54-NF firmware Ver.2.02 and prior, WZR-G108 firmware Ver.2.41 and prior, WZR-G54 firmware Ver.2.41 and prior, WZR-HP-G54 firmware Ver.2.41 and prior, WZR-RS-G54 firmware Ver.2.55 and prior, and WZR-RS-G54HP firmware Ver.2.55 and prior) allows a remote attacker to enable the debug option and to execute arbitrary code or OS commands, change the configuration, and cause a denial of service (DoS) condition."},{"lang":"es","value":"Una funcionalidad Hidden en múltiples dispositivos de red de Buffalo (firmware de BHR-4RV Ver.2.55 y anteriores, firmware de FS-G54 Ver.2.04 y anteriores, firmware de WBR2-B11 Ver.2.32 y anteriores, firmware de WBR2-G54 Ver.2 .32 y anteriores, firmware de WBR2-G54-KD Ver.2.32 y anteriores, firmware de WBR-B11 Ver.2.23 y anteriores, firmware de WBR-G54 Ver.2.23 y anteriores, firmware de WBR-G54L Ver.2.20 y anteriores, firmware de WHR2-A54G54 Ver.2 .25 y anteriores, firmware de WHR2-G54 Ver.2.23 y anteriores, firmware de WHR2-G54V Ver.2.55 y anteriores, firmware de WHR3-AG54 Ver.2.23 y anteriores, firmware de WHR-G54 Ver.2.16 y anteriores, firmware de WHR-G54-NF Ver.2 .10 y anteriores, firmware de WLA2-G54 Ver.2.24 y anteriores, firmware de WLA2-G54C Ver.2.24 y anteriores, firmware de WLA-B11 Ver.2.20 y anteriores, firmware de WLA-G54 Ver.2.20 y anteriores, firmware de WLA-G54C Ver.2.20 y anteriores, firmware de WLAH-A54G54 Ver.2 .54 y anteriores, firmware de WLAH-AM54G54 Ver.2.54 y anteriores, firmware de WLAH-G54 Ver.2.54 y anteriores, firmware de WLI2-TX1-AG54 Ver.2.53 y anteriores, firmware de WLI2-TX1-AMG54 Ver.2.53 y anteriores, firmware de WLI2-TX1-G54 Ver.2 .20 y anteriores, firmware de WLI3-TX1-AMG54 Ver.2.53 y anteriores, firmware de WLI3-TX1-G54 Ver.2.53 y anteriores, firmware de WLI-T1-B11 Ver.2.20 y anteriores, firmware de WLI-TX1-G54 Ver.2.20 y anteriores, firmware de WVR-G54-NF Ver.2 .02 y anteriores, firmware de WZR-G108 Ver.2.41 y anteriores, firmware de WZR-G54 Ver.2.41 y anteriores, firmware de WZR-HP-G54 Ver.2.41 y anteriores, firmware de WZR-RS-G54 Ver.2.55 y anteriores, y firmware de WZR-RS-G54HP Ver.2.55 y anteriores) permite a un atacante remoto habilitar la opción de depuración y ejecutar código arbitrario o comandos del Sistema Operativo, cambiar la configuración, y causar una condición de denegación de servicio (DoS)"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:C/I:C/A:C","baseScore":10.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":10.0,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-Other"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:buffalo:bhr-4rv_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.55","matchCriteriaId":"A5870F64-5EE0-425F-B71E-DDE20BCDFD0F"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:buffalo:bhr-4rv:-:*:*:*:*:*:*:*","matchCriteriaId":"9A0BAD48-7DB1-4F5C-8503-D86397814FAA"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:buffalo:fs-g54_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.04","matchCriteriaId":"74DD66E3-90E8-4567-883A-04CE9412A80E"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:buffalo:fs-g54:-:*:*:*:*:*:*:*","matchCriteriaId":"38861F63-A04A-4EF0-B3E8-D4EA979EE1AA"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:buffalo:wbr2-b11_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.32","matchCriteriaId":"A9D050ED-860A-4154-8402-8A6214C5D9AE"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:buffalo:wbr2-b11:-:*:*:*:*:*:*:*","matchCriteriaId":"BF5EEF7B-42BC-4755-98F6-CFA2FAD956B2"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:buffalo:wbr2-g54_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.32","matchCriteriaId":"21DD735D-16B3-424A-ADF9-48B4FD2923AB"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:buffalo:wbr2-g54:-:*:*:*:*:*:*:*","matchCriteriaId":"126F7265-9B71-44E5-8C9D-7187A9A615E2"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:buffalo:wbr2-g54-kd_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.32","matchCriteriaId":"D99B403F-8E68-4A1B-86F9-CEB0C89F3BDA"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:buffalo:wbr2-g54-kd:-:*:*:*:*:*:*:*","matchCriteriaId":"18E26714-316A-493C-A87E-9045EC964C24"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:buffalo:wbr-b11_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.23","matchCriteriaId":"8CB556A4-0E37-48EA-8A41-94916F84A6D0"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:buffalo:wbr-b11:-:*:*:*:*:*:*:*","matchCriteriaId":"BD7F11A5-614F-4DC2-A6F4-F50929B35CB1"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:buffalo:wbr-g54_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.23","matchCriteriaId":"F1E3DE3C-C479-44EC-98FE-C6651344ADF2"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:buffalo:wbr-g54:-:*:*:*:*:*:*:*","matchCriteriaId":"CC28158A-3AC9-4845-B3FC-DA0D15F1A234"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:buffalo:wbr-g54l_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.20","matchCriteriaId":"2E3CD564-DF11-4BCE-AE47-F492B1E34D47"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:buffalo:wbr-g54l:-:*:*:*:*:*:*:*","matchCriteriaId":"ECE55F75-F79C-43D2-B0EC-0606E09BEBA6"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:buffalo:whr2-a54g54_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"2.25","matchCriteriaId":"59ECCE87-35AE-4DE4-A64D-7266EA2C1DF2"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:buffalo:whr2-a54g54:-:*:*:*:*:*:*:*","matchCriteriaId":"A9C7FD1B-522F-4F5F-B70D-7974629CECD2"}]}]},{"operator":"AND","nodes":[{"operator":"OR",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