{"api_version":"1","generated_at":"2026-07-24T19:36:05+00:00","cve":"CVE-2020-25366","urls":{"html":"https://cve.report/CVE-2020-25366","api":"https://cve.report/api/cve/CVE-2020-25366.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-25366","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-25366"},"summary":{"title":"CVE-2020-25366","description":"An issue in the component /cgi-bin/upload_firmware.cgi of D-Link DIR-823G REVA1 1.02B05 allows attackers to cause a denial of service (DoS) via unspecified vectors.","state":"PUBLISHED","assigner":"mitre","published_at":"2021-11-04 11:15:07","updated_at":"2026-07-09 00:17:01"},"problem_types":["CWE-862","n/a"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"8.5","severity":"","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:C","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:C","baseScore":8.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"COMPLETE"}}],"references":[{"url":"https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md","name":"https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"title":"iot/dir823g_upfw_dos.md at master · sek1th/iot · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.dlink.com/en/security-bulletin/","name":"https://www.dlink.com/en/security-bulletin/","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"title":"Security Bulletin | D-Link","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://d-link.com","name":"http://d-link.com","refsource":"MITRE","tags":[],"title":"","mime":"","httpstatus":"-1","archivestatus":"409"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-25366","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25366","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"25366","vulnerable":"0","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"dlink","cpe5":"dir-823g","cpe6":"a1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"25366","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"dlink","cpe5":"dir-823g_firmware","cpe6":"1.02b05","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2020","cve_id":"25366","cve":"CVE-2020-25366","epss":"0.023810000","percentile":"0.819360000","score_date":"2026-07-12","updated_at":"2026-07-13 00:07:38"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2026-07-09T00:11:06.989Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"https://www.dlink.com/en/security-bulletin/"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"descriptions":[{"lang":"en","value":"An issue in the component /cgi-bin/upload_firmware.cgi of D-Link DIR-823G REVA1 1.02B05 allows attackers to cause a denial of service (DoS) via unspecified vectors."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2026-07-04T23:55:48.471Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"url":"https://www.dlink.com/en/security-bulletin/"},{"url":"https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2020-25366","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An issue in the component /cgi-bin/upload_firmware.cgi of D-Link DIR-823G REVA1 1.02B05 allows attackers to cause a denial of service (DoS) via unspecified vectors."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"http://d-link.com","refsource":"MISC","url":"http://d-link.com"},{"name":"https://www.dlink.com/en/security-bulletin/","refsource":"MISC","url":"https://www.dlink.com/en/security-bulletin/"},{"name":"https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md","refsource":"MISC","url":"https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2020-25366","datePublished":"2021-11-04T10:12:10.000Z","dateReserved":"2020-09-14T00:00:00.000Z","dateUpdated":"2026-07-09T00:11:06.989Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2021-11-04 11:15:07","lastModifiedDate":"2026-07-09 00:17:01","problem_types":["CWE-862","n/a"],"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:N/I:H/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.2}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:C","baseScore":8.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":10,"impactScore":7.8,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:dlink:dir-823g_firmware:1.02b05:*:*:*:*:*:*:*","matchCriteriaId":"359D06ED-7E8E-40E5-84A4-27F1693820E9"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:dlink:dir-823g:a1:*:*:*:*:*:*:*","matchCriteriaId":"EF303ADD-7BAC-4D2A-B644-D03B23F76DDB"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"25366","Ordinal":"1","Title":"CVE-2020-25366","CVE":"CVE-2020-25366","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"25366","Ordinal":"1","NoteData":"An issue in the component /cgi-bin/upload_firmware.cgi of D-Link DIR-823G REVA1 1.02B05 allows attackers to cause a denial of service (DoS) via unspecified vectors.","Type":"Description","Title":"CVE-2020-25366"},{"CveYear":"2020","CveId":"25366","Ordinal":"2","NoteData":"2021-11-04","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"25366","Ordinal":"3","NoteData":"2021-11-04","Type":"Other","Title":"Modified"}]}}}