{"api_version":"1","generated_at":"2026-07-02T07:27:45+00:00","cve":"CVE-2021-31505","urls":{"html":"https://cve.report/CVE-2021-31505","api":"https://cve.report/api/cve/CVE-2021-31505.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-31505","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-31505"},"summary":{"title":"CVE-2021-31505","description":"This vulnerability allows attackers with physical access to escalate privileges on affected installations of Arlo Q Plus 1.9.0.3_278. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SSH service. The device can be booted into a special operation mode where hard-coded credentials are accepted for SSH authentication. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. 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Was ZDI-CAN-12890."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-798: Use of Hard-coded Credentials"}]}]},"references":{"reference_data":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-683/","refsource":"MISC","name":"https://www.zerodayinitiative.com/advisories/ZDI-21-683/"},{"url":"https://kb.arlo.com/000062592/Security-Advisory-for-Arlo-Q-Plus-SSH-Use-of-Hard-coded-Credentials-Allowing-Privilege-Escalation","refsource":"MISC","name":"https://kb.arlo.com/000062592/Security-Advisory-for-Arlo-Q-Plus-SSH-Use-of-Hard-coded-Credentials-Allowing-Privilege-Escalation"}]},"impact":{"cvss":{"vectorString":"CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"}}},"nvd":{"publishedDate":"2021-06-29 15:15:00","lastModifiedDate":"2021-07-07 17:42:00","problem_types":["CWE-798"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"PHYSICAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":6.8,"baseSeverity":"MEDIUM"},"exploitabilityScore":0.9,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:C/I:C/A:C","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE","baseScore":7.2},"severity":"HIGH","exploitabilityScore":3.9,"impactScore":10,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:arlo:q_plus_firmware:1.9.0.3_278:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:arlo:q_plus:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"31505","Ordinal":"206795","Title":"CVE-2021-31505","CVE":"CVE-2021-31505","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"31505","Ordinal":"1","NoteData":"This vulnerability allows attackers with physical access to escalate privileges on affected installations of Arlo Q Plus 1.9.0.3_278. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SSH service. The device can be booted into a special operation mode where hard-coded credentials are accepted for SSH authentication. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-12890.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"31505","Ordinal":"2","NoteData":"2021-06-29","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"31505","Ordinal":"3","NoteData":"2021-06-29","Type":"Other","Title":"Modified"}]}}}