{"schemaVersion":3,"id":"CVE-2022-43621","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-1935 1.03 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from an incorrectly implemented comparison. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-16152.","dates":{"published":"2023-03-29T00:00:00.000Z","modified":"2025-02-18T19:31:31.340Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.8,"severity":"high","version":"3.0","versionLabel":"v3.0","source":"CVE.org","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":8.8,"severity":"high","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.02144,"percentile":0.81907,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":-0.0279999999999999,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.02172},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.02144,"percentile":0.81907}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02172,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02144,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.02144,"percentile":0.81907}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-697","name":"Incorrect Comparison","description":"The product compares two entities in a security-relevant context, but the comparison is incorrect.","type":"weakness","status":"Incomplete","abstraction":"Pillar","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/697.html"}],"affected":[{"vendor":"d-link","product":"dir-1935","name":"DIR-1935","label":"dir-1935","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"1.03","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.03","eol":null,"hubHref":"/vendor/d-link/dir-1935"},{"vendor":"dlink","product":"dir-1935_firmware","name":"dir-1935 firmware","label":"dir-1935_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.02","noFixRecorded":false,"fixedIn":null},{"text":"1.03:b1","noFixRecorded":false,"fixedIn":null},{"text":"1.03:b2","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.02 | 1.03:b1 | 1.03:b2","eol":null,"hubHref":"/vendor/dlink/dir-1935"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310","label":"supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10310","hostname":"supportannouncement.us.dlink.com","tags":["Patch","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-22-1503/","label":"www.zerodayinitiative.com/advisories/ZDI-22-1503/","hostname":"www.zerodayinitiative.com","tags":["Third Party Advisory","VDB Entry"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-03-29T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-02-18T19:31:31.340Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":36,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T00:24:29.224Z","stale":false,"partial":false}}