{"schemaVersion":3,"id":"CVE-2026-2084","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A weakness has been identified in D-Link DIR-823X 250416. This impacts an unknown function of the file /goform/set_language. Executing a manipulation of the argument langSelection can lead to os command injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.","dates":{"published":"2026-02-07T11:32:09.250Z","modified":"2026-02-23T09:31:45.636Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.6,"severity":"high","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.6,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/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":7.2,"severity":"high","vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/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":8.3,"severity":"high","vector":"AV:N/AC:L/Au:M/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":7.3,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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":7.2,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:H/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":8.3,"severity":"high","vector":"AV:N/AC:L/Au:M/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.04623,"percentile":0.91607,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.6190000000000001,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.04004},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.04623,"percentile":0.91607}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.04004,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.04091,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.04623,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.04623,"percentile":0.91607}]},"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_MASTER-ABC_CVE","name":"Cve","source":"github","url":"https://github.com/master-abc/cve/blob/main/Tenda%20CH22%20V1.0.0.1%20Router%20Authentication%20Bypass%20Vulnerability%20in%20R7WebsSecurityHandler%20function.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":"dir-823x","name":"DIR-823X","label":"dir-823x","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"250416","noFixRecorded":false,"fixedIn":null}],"versionsText":"250416","eol":null,"hubHref":"/vendor/d-link/dir-823x"},{"vendor":"dlink","product":"dir-823x_firmware","name":"dir-823x firmware","label":"dir-823x_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"250416","noFixRecorded":false,"fixedIn":null}],"versionsText":"250416","eol":null,"hubHref":"/vendor/dlink/dir-823x"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://vuldb.com/?id.344651","label":"vuldb.com?id.344651","hostname":"vuldb.com","tags":["VDB Entry","Technical Description","Third Party Advisory"]},{"url":"https://vuldb.com/?ctiid.344651","label":"vuldb.com?ctiid.344651","hostname":"vuldb.com","tags":["Signature","Permissions Required","VDB Entry"]},{"url":"https://vuldb.com/?submit.746379","label":"vuldb.com?submit.746379","hostname":"vuldb.com","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://vuldb.com/?submit.746380","label":"vuldb.com?submit.746380","hostname":"vuldb.com","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://github.com/master-abc/cve/issues/24","label":"github.com/master-abc/cve/issues/24","hostname":"github.com","tags":["Exploit","Issue Tracking"]},{"url":"https://www.dlink.com/","label":"www.dlink.com","hostname":"www.dlink.com","tags":["Product"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-02-07T11:32:09.250Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-23T09:31:45.636Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":45,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T14:40:27.439Z","stale":false,"partial":false}}