{"schemaVersion":3,"id":"CVE-2026-82689","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability was detected in D-Link DNS-320L, DNS-327L, DNS-340L and DNS-345 up to 20260717. Affected is an unknown function of the file /cgi-bin/isomount_mgr.cgi of the component ISO Image Handler. The manipulation of the argument upIsoRootPath results in os command injection. The attack can be executed remotely. The exploit is now public and may be used.","dates":{"published":"2026-08-31T11:15:09.892Z","modified":"2026-08-31T15:10:39.053Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.9,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":9.4,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.9,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":9.9,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"CVE.org","score":9,"severity":"high","vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":8.6,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.9,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":9,"severity":"high","vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.03277,"percentile":0.88341,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.9199999999999999,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.02357},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.03277,"percentile":0.88341}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02357,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.03277,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.03277,"percentile":0.88341}]},"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":[{"id":"GITHUB_DXZ0069_WAVLINK-WN530H4-COMMAND-INJECTION-IN-SET_ADD_ROUTING","name":"Wavlink Wn530H4 Command Injection In Set Add Routing","source":"github","url":"https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/vuldb_submission_report.md","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-77","name":"Improper Neutralization of Special Elements used in a Command ('Command Injection')","description":"The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/77.html"},{"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":"d-link","product":"dns-320l_firmware","name":"dns-320l firmware","label":"dns-320l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"20260717","noFixRecorded":false,"fixedIn":null}],"versionsText":"20260717","eol":null,"hubHref":"/vendor/d-link/dns-320l"},{"vendor":"d-link","product":"dns-327l_firmware","name":"dns-327l firmware","label":"dns-327l_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"20260717","noFixRecorded":false,"fixedIn":null}],"versionsText":"20260717","eol":null,"hubHref":"/vendor/d-link/dns-327l"},{"vendor":"d-link","product":"dns-340l","name":"DNS-340L","label":"dns-340l","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"20260717","noFixRecorded":false,"fixedIn":null}],"versionsText":"20260717","eol":null,"hubHref":"/vendor/d-link/dns-340l"},{"vendor":"d-link","product":"dns-345_firmware","name":"dns-345 firmware","label":"dns-345_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"20260717","noFixRecorded":false,"fixedIn":null}],"versionsText":"20260717","eol":null,"hubHref":"/vendor/d-link/dns-345"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://vuldb.com/vuln/397177","label":"vuldb.com/vuln/397177","hostname":"vuldb.com","tags":["VDB Entry","Technical Description"]},{"url":"https://vuldb.com/vuln/397177/cti","label":"vuldb.com/vuln/397177/cti","hostname":"vuldb.com","tags":["Signature","Permissions Required"]},{"url":"https://vuldb.com/cve/CVE-2026-82689","label":"vuldb.com/cve/CVE-2026-82689","hostname":"vuldb.com","tags":["Third Party Advisory"]},{"url":"https://vuldb.com/submit/894201","label":"vuldb.com/submit/894201","hostname":"vuldb.com","tags":["Third Party Advisory"]},{"url":"https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/DLINK-CMD-003-vulndb.md","label":"github.com/dxz0069/…","hostname":"github.com","tags":["Exploit"]},{"url":"https://www.dlink.com/","label":"www.dlink.com","hostname":"www.dlink.com","tags":["Product"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-08-31T11:15:09.892Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-31T15:10:39.053Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T05:27:07.670Z","stale":false,"partial":false}}