{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://jvn.jp/en/vu/JVNVU94527926/index.html", "name": "https://jvn.jp/en/vu/JVNVU94527926/index.html", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.elecom.co.jp/news/security/20211130-01/", "name": "https://www.elecom.co.jp/news/security/20211130-01/", "tags": ["Vendor Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "OS command injection vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, WRC-2533GS2-W firmware v1.52 and prior, WRC-1750GS firmware v1.03 and prior, WRC-1750GSV firmware v2.11 and prior, WRC-1900GST firmware v1.03 and prior, WRC-2533GST firmware v1.03 and prior, WRC-2533GSTA firmware v1.03 and prior, WRC-2533GST2 firmware v1.25 and prior, WRC-2533GST2SP firmware v1.25 and prior, WRC-2533GST2-G firmware v1.25 and prior, and EDWRC-2533GST2 firmware v1.25 and prior) allows a network-adjacent authenticated attackers to execute an arbitrary OS command with the root privilege via unspecified vectors."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-78"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-20863", "ASSIGNER": "vultures@jpcert.or.jp"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.7, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:S/C:C/I:C/A:C", "authentication": "SINGLE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 10.0, "obtainAllPrivilege": false, "exploitabilityScore": 5.1, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": 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