{"id":"CVE-2021-33259","title":"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.","summary":"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.","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-306"],"vendor":"d-link","product":"dir-868lw_firmware","affected":["dir-868lw_firmware = 1.12b"],"published":"2021-10-31","updated":"2026-07-05","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-33259","references":[{"url":"https://github.com/jayus0821/uai-poc/blob/main/D-Link/DIR-868L/webaccess_UAI.md","label":"cve@mitre.org"},{"url":"https://www.dlink.com/en/security-bulletin/","label":"cve@mitre.org"},{"url":"http://d-link.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://dir-868lw.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/jayus0821/uai-poc/blob/main/D-Link/DIR-868L/webaccess_UAI.md","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.dlink.com/en/security-bulletin/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.0179,"epssPercentile":0.77054,"ingestedAt":"2026-07-06T01:08:17.047Z","slug":"CVE-2021-33259","body":"## Overview\n\nSeveral web interfaces in D-Link DIR-868LW 1.12b have no authentication requirements for access, allowing for attackers to obtain users' DNS query history.\n\n## Affected\n\n- `dir-868lw_firmware = 1.12b`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.2,"likelihood":0.4,"exploitation":0,"ransomware":0},"changes":[]}