{"schemaVersion":3,"id":"CVE-2021-45382","aliases":[],"status":"published","duplicateOf":null,"title":"D-Link Multiple Routers Remote Code Execution Vulnerability","description":"A Remote Command Execution (RCE) vulnerability exists in all series H/W revisions D-link DIR-810L, DIR-820L/LW, DIR-826L, DIR-830L, and DIR-836L routers via the DDNS function in ncc2 binary file. Note: DIR-810L, DIR-820L, DIR-830L, DIR-826L, DIR-836L, all hardware revisions, have reached their End of Life (\"EOL\") /End of Service Life (\"EOS\") Life-Cycle and as such this issue will not be patched.","dates":{"published":"2022-02-17T20:07:46.000Z","modified":"2025-10-21T23:15:45.976Z","reserved":null,"kevAdded":["2022-04-04T00:00:00.000Z"],"kevDue":["2022-04-25T00:00:00.000Z"]},"cvss":{"headline":{"score":10,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/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":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":10,"severity":"high","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.97836,"percentile":0.99909,"severity":"critical","asOf":"2026-10-22T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-22T00:00:00.000Z","baselineScore":0.97836},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-22T00:00:00.000Z","score":0.97836,"percentile":0.99909}],"last30":[{"date":"2026-09-22T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.97836,"percentile":null},{"date":"2026-10-22T00:00:00.000Z","score":0.97836,"percentile":0.99909}]},"kev":{"state":"listed","entries":[{"source":"cisa","sourceLabel":"CISA","dateAdded":"2022-04-04T00:00:00.000Z","dueDate":"2022-04-25T00:00:00.000Z","requiredAction":"The impacted product is end-of-life and should be disconnected if still in use.","name":"D-Link Multiple Routers Remote Code Execution Vulnerability","description":"A remote code execution vulnerability exists in all series H/W revisions routers via the DDNS function in ncc2 binary file.","notes":[{"type":"url","href":"https://nvd.nist.gov/vuln/detail/CVE-2021-45382","label":"nvd.nist.gov/vuln/detail/CVE-2021-45382"}],"vendor":"D-Link","product":"Multiple Routers","ransomware":false,"ransomwareUse":"Unknown","exploitationType":null}],"listedCount":1,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":true,"entry":{"source":"cisa","sourceLabel":"CISA","dateAdded":"2022-04-04T00:00:00.000Z","dueDate":"2022-04-25T00:00:00.000Z","requiredAction":"The impacted product is end-of-life and should be disconnected if still in use.","name":"D-Link Multiple Routers Remote Code Execution Vulnerability","description":"A remote code execution vulnerability exists in all series H/W revisions routers via the DDNS function in ncc2 binary file.","notes":[{"type":"url","href":"https://nvd.nist.gov/vuln/detail/CVE-2021-45382","label":"nvd.nist.gov/vuln/detail/CVE-2021-45382"}],"vendor":"D-Link","product":"Multiple Routers","ransomware":false,"ransomwareUse":"Unknown","exploitationType":null}},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"GITHUB_DOUDOUDEDI_D-LINK_COMMAND_INJECTION1","name":"D Link Command Injection1","source":"github","url":"https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","description":"The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/78.html"}],"affected":[{"vendor":"dlink","product":"dir-810l_firmware","name":"dir-810l firmware","label":"dir-810l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/dlink/dir-810l"},{"vendor":"dlink","product":"dir-820l_firmware","name":"dir-820l firmware","label":"dir-820l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/dlink/dir-820l"},{"vendor":"dlink","product":"dir-820lw_firmware","name":"dir-820lw firmware","label":"dir-820lw_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/dlink/dir-820lw"},{"vendor":"dlink","product":"dir-826l_firmware","name":"dir-826l firmware","label":"dir-826l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/dlink/dir-826l"},{"vendor":"dlink","product":"dir-830l_firmware","name":"dir-830l firmware","label":"dir-830l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/dlink/dir-830l"},{"vendor":"dlink","product":"dir-836l_firmware","name":"dir-836l firmware","label":"dir-836l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/dlink/dir-836l"}],"affectedCount":6,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264","label":"supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10264","hostname":"supportannouncement.us.dlink.com","tags":["X Refsource MISC","Vendor Advisory"]},{"url":"https://github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md","label":"github.com/doudoudedi/D-LINK_Command_Injection1/blob/main/D-LINK_Command_injection.md","hostname":"github.com","tags":["X Refsource MISC","Exploit","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45382","label":"www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45382","hostname":"www.cisa.gov","tags":["Government Resource","US Government Resource"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2022-02-17T20:07:46.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"kev-added","date":"2022-04-04T00:00:00.000Z","label":"Added to CISA KEV","detail":"D-Link Multiple Routers Remote Code Execution Vulnerability","source":"cisa"},{"kind":"kev-due","date":"2022-04-25T00:00:00.000Z","label":"CISA remediation due","detail":"The impacted product is end-of-life and should be disconnected if still in use.","source":"cisa"},{"kind":"modified","date":"2025-10-21T23:15:45.976Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":90,"level":"critical","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T18:00:59.059Z","stale":false,"partial":false}}