CVE-2021-33259

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "Several web interfaces in D-Link DIR-868LW 1.12b have no authentication requirements for access, allowing for attackers to obtain users' DNS query history."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2026-07-05T15:52:18.675Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"url": "https://www.dlink.com/en/security-bulletin/"}, {"url": "https://github.com/jayus0821/uai-poc/blob/main/D-Link/DIR-868L/webaccess_UAI.md"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-33259", "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": "Several web interfaces in D-Link DIR-868LW 1.12b have no authentication requirements for access, allowing for attackers to obtain users' DNS query history."}]}, "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": "http://dir-868lw.com", "refsource": "MISC", "url": "http://dir-868lw.com"}, {"name": "https://github.com/jayus0821/uai-poc/blob/main/D-Link/DIR-868L/webaccess_UAI.md", "refsource": "MISC", "url": "https://github.com/jayus0821/uai-poc/blob/main/D-Link/DIR-868L/webaccess_UAI.md"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-07-09T00:13:42.693Z"}, "title": "CVE Program Container", "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/jayus0821/uai-poc/blob/main/D-Link/DIR-868L/webaccess_UAI.md"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-33259", "datePublished": "2021-10-31T18:32:52.000Z", "dateReserved": "2021-05-20T00:00:00.000Z", "dateUpdated": "2026-07-09T00:13:42.693Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.2"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:d-link:dir-868lw_firmware:1.12b:*:*:*:*:*:*:*", "matchCriteriaId": "F16FC448-2DEB-4655-9AA9-EFF0591B2353", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dir-868lw:-:*:*:*:*:*:*:*", "matchCriteriaId": "43B5B770-C4F2-4663-814D-C85CDE086192", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Several web interfaces in D-Link DIR-868LW 1.12b have no authentication requirements for access, allowing for attackers to obtain users' DNS query history."}, {"lang": "es", "value": "Varias interfaces web en D-Link DIR-868LW versi\u00f3n 1.12b, no tienen requisitos de autenticaci\u00f3n para el acceso, lo que permite a atacantes obtener el historial de consultas de DNS de los usuarios"}], "id": "CVE-2021-33259", "lastModified": "2026-07-09T01:16:54.480", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-10-31T19:15:09.920", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/jayus0821/uai-poc/blob/main/D-Link/DIR-868L/webaccess_UAI.md"}, {"source": "cve@mitre.org", "tags": ["Not Applicable"], "url": "https://www.dlink.com/en/security-bulletin/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/jayus0821/uai-poc/blob/main/D-Link/DIR-868L/webaccess_UAI.md"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Not Applicable"], "url": "https://www.dlink.com/en/security-bulletin/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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