{"schemaVersion":3,"id":"CVE-2019-17621","aliases":[],"status":"published","duplicateOf":null,"title":"D-Link DIR-859 Router Command Execution Vulnerability","description":"The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1.06B01 Beta01 allows an Unauthenticated remote attacker to execute system commands as root, by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.","dates":{"published":"2019-12-30T16:09:17.000Z","modified":"2025-10-21T23:35:54.315Z","reserved":null,"kevAdded":["2023-06-29T00:00:00.000Z"],"kevDue":["2023-07-20T00:00:00.000Z"]},"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":0.89624,"percentile":0.99788,"severity":"critical","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.89624},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.89624,"percentile":0.99788}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.89624,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.89624,"percentile":0.99788}]},"kev":{"state":"listed","entries":[{"source":"cisa","sourceLabel":"CISA","dateAdded":"2023-06-29T00:00:00.000Z","dueDate":"2023-07-20T00:00:00.000Z","requiredAction":"Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.","name":"D-Link DIR-859 Router Command Execution Vulnerability","description":"D-Link DIR-859 router contains a command execution vulnerability in the UPnP endpoint URL, /gena.cgi. Exploitation allows an unauthenticated remote attacker to execute system commands as root by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.","notes":[{"type":"url","href":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147","label":"supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147"},{"type":"url","href":"https://nvd.nist.gov/vuln/detail/CVE-2019-17621","label":"nvd.nist.gov/vuln/detail/CVE-2019-17621"}],"vendor":"D-Link","product":"DIR-859 Router","ransomware":false,"ransomwareUse":"Unknown","exploitationType":null}],"listedCount":1,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":true,"entry":{"source":"cisa","sourceLabel":"CISA","dateAdded":"2023-06-29T00:00:00.000Z","dueDate":"2023-07-20T00:00:00.000Z","requiredAction":"Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.","name":"D-Link DIR-859 Router Command Execution Vulnerability","description":"D-Link DIR-859 router contains a command execution vulnerability in the UPnP endpoint URL, /gena.cgi. Exploitation allows an unauthenticated remote attacker to execute system commands as root by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.","notes":[{"type":"url","href":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147","label":"supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147"},{"type":"url","href":"https://nvd.nist.gov/vuln/detail/CVE-2019-17621","label":"nvd.nist.gov/vuln/detail/CVE-2019-17621"}],"vendor":"D-Link","product":"DIR-859 Router","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":"REF_AB3CE523380006DF","name":"Exploit Reference (medium.com)","source":"reference","url":"https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-en-d94b47a15104","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null},{"id":"REF_9A917D6402FB24E2","name":"Exploit Reference (packetstormsecurity.com)","source":"reference","url":"http://packetstormsecurity.com/files/156054/D-Link-DIR-859-Unauthenticated-Remote-Command-Execution.html","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null},{"id":"MSF_EXPLOIT_LINUX_UPNP_DLINK_DIR859_SUBSCRIBE_EXEC","name":"D-Link DIR-859 Unauthenticated Remote Command Execution","source":"metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploit/linux/upnp/dlink_dir859_subscribe_exec.rb","maturity":"weaponized","reliabilityScore":1,"verified":true,"type":"remote","platforms":[],"requiresAuth":false,"exploitdb":null,"metasploit":{"fullname":"exploit/linux/upnp/dlink_dir859_subscribe_exec","rank":"600","rankName":"excellent","postAuth":false,"check":false,"stability":["crash-safe"],"sideEffects":["artifacts-on-disk"],"reliability":["repeatable-session"]}}],"exploitCount":3,"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-818lx_firmware","name":"dir-818lx firmware","label":"dir-818lx_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/dlink/dir-818lx"},{"vendor":"dlink","product":"dir-822_firmware","name":"dir-822 firmware","label":"dir-822_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 2.03b01","noFixRecorded":false,"fixedIn":null},{"text":"≤ 3.12b04","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 2.03b01 | ≤ 3.12b04","eol":null,"hubHref":"/vendor/dlink/dir-822"},{"vendor":"dlink","product":"dir-823_firmware","name":"dir-823 firmware","label":"dir-823_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.00b06","noFixRecorded":false,"fixedIn":null},{"text":"1.00b06:beta","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.00b06 | 1.00b06:beta","eol":null,"hubHref":"/vendor/dlink/dir-823"},{"vendor":"dlink","product":"dir-859_firmware","name":"dir-859 firmware","label":"dir-859_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.05b03","noFixRecorded":false,"fixedIn":null},{"text":"1.06b01:beta1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.05b03 | 1.06b01:beta1","eol":null,"hubHref":"/vendor/dlink/dir-859"},{"vendor":"dlink","product":"dir-865l_firmware","name":"dir-865l firmware","label":"dir-865l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.07b01","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.07b01","eol":null,"hubHref":"/vendor/dlink/dir-865l"},{"vendor":"dlink","product":"dir-868l_firmware","name":"dir-868l firmware","label":"dir-868l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.12b04","noFixRecorded":false,"fixedIn":null},{"text":"≤ 2.05b02","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.12b04 | ≤ 2.05b02","eol":null,"hubHref":"/vendor/dlink/dir-868l"},{"vendor":"dlink","product":"dir-869_firmware","name":"dir-869 firmware","label":"dir-869_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.03b02","noFixRecorded":false,"fixedIn":null},{"text":"1.03b02:beta02","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.03b02 | 1.03b02:beta02","eol":null,"hubHref":"/vendor/dlink/dir-869"},{"vendor":"dlink","product":"dir-880l_firmware","name":"dir-880l firmware","label":"dir-880l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.08b04","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.08b04","eol":null,"hubHref":"/vendor/dlink/dir-880l"},{"vendor":"dlink","product":"dir-885l_firmware","name":"dir-885l firmware","label":"dir-885l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.12b05","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.12b05","eol":null,"hubHref":"/vendor/dlink/dir-885l"},{"vendor":"dlink","product":"dir-885r_firmware","name":"dir-885r firmware","label":"dir-885r_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.12b05","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.12b05","eol":null,"hubHref":"/vendor/dlink/dir-885r"},{"vendor":"dlink","product":"dir-890l_firmware","name":"dir-890l firmware","label":"dir-890l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.11b01","noFixRecorded":false,"fixedIn":null},{"text":"1.11b01:beta01","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.11b01 | 1.11b01:beta01","eol":null,"hubHref":"/vendor/dlink/dir-890l"},{"vendor":"dlink","product":"dir-890r_firmware","name":"dir-890r firmware","label":"dir-890r_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.11b01","noFixRecorded":false,"fixedIn":null},{"text":"1.11b01:beta01","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.11b01 | 1.11b01:beta01","eol":null,"hubHref":"/vendor/dlink/dir-890r"},{"vendor":"dlink","product":"dir-895l_firmware","name":"dir-895l firmware","label":"dir-895l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.12b10","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.12b10","eol":null,"hubHref":"/vendor/dlink/dir-895l"},{"vendor":"dlink","product":"dir-895r_firmware","name":"dir-895r firmware","label":"dir-895r_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1.12b10","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.12b10","eol":null,"hubHref":"/vendor/dlink/dir-895r"}],"affectedCount":14,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.ftc.gov/system/files/documents/cases/dlink_proposed_order_and_judgment_7-2-19.pdf","label":"www.ftc.gov/system/files/documents/cases/dlink_proposed_order_and_judgment_7-2-19.pdf","hostname":"www.ftc.gov","tags":["X Refsource MISC","Third Party Advisory","US Government Resource"]},{"url":"https://www.dlink.com/en/security-bulletin","label":"www.dlink.com/en/security-bulletin","hostname":"www.dlink.com","tags":["X Refsource MISC","Vendor Advisory"]},{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147","label":"supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147","hostname":"supportannouncement.us.dlink.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10146","label":"supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10146","hostname":"supportannouncement.us.dlink.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-en-d94b47a15104","label":"medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-en-d94b47a15104","hostname":"medium.com","tags":["X Refsource MISC","Exploit","Third Party Advisory"]},{"url":"https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-es-fad716629ff9","label":"medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2019-17621-es-fad716629ff9","hostname":"medium.com","tags":["X Refsource MISC","Broken Link"]},{"url":"http://packetstormsecurity.com/files/156054/D-Link-DIR-859-Unauthenticated-Remote-Command-Execution.html","label":"packetstormsecurity.com/files/156054/D-Link-DIR-859-Unauthenticated-Remote-Command-Execution.html","hostname":"packetstormsecurity.com","tags":["X Refsource MISC","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17621","label":"www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17621","hostname":"www.cisa.gov","tags":["Government Resource","US Government Resource"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2019-12-30T16:09:17.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"kev-added","date":"2023-06-29T00:00:00.000Z","label":"Added to CISA KEV","detail":"D-Link DIR-859 Router Command Execution Vulnerability","source":"cisa"},{"kind":"kev-due","date":"2023-07-20T00:00:00.000Z","label":"CISA remediation due","detail":"Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.","source":"cisa"},{"kind":"modified","date":"2025-10-21T23:35:54.315Z","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":"2026-10-20T05:23:43.945Z","stale":false,"partial":false}}