{"schemaVersion":3,"id":"CVE-2022-44808","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A command injection vulnerability has been found on D-Link DIR-823G devices with firmware version 1.02B03 that allows an attacker to execute arbitrary operating system commands through well-designed /HNAP1 requests. Before the HNAP API function can process the request, the system function executes an untrusted command that triggers the vulnerability.","dates":{"published":"2022-11-22T00:00:00.000Z","modified":"2025-04-25T21:07:37.332Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","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}]},"epss":{"probability":0.0384,"percentile":0.90006,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":-0.02600000000000033,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.03866},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0384,"percentile":0.90006}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.03866,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0384,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0384,"percentile":0.90006}]},"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_ROBINWANG825_IOT_VULN","name":"Iot Vuln","source":"github","url":"https://github.com/RobinWang825/IoT_vuln/tree/main/Tenda/AC15/fromSetRouteStatic","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-823g_firmware","name":"dir-823g firmware","label":"dir-823g_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"1.02b03","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.02b03","eol":null,"hubHref":"/vendor/dlink/dir-823g"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.dlink.com/en/security-bulletin/","label":"www.dlink.com/en/security-bulletin/","hostname":"www.dlink.com","tags":["Vendor Advisory"]},{"url":"https://github.com/RobinWang825/IoT_vuln/tree/main/D-Link/DIR-823G/2","label":"github.com/RobinWang825/IoT_vuln/tree/main/D-Link/DIR-823G/2","hostname":"github.com","tags":["Exploit","Third Party Advisory"]},{"url":"https://github.com/726232111/VulIoT/tree/main/D-Link/DIR823G%20V1.0.2B05/HNAP1","label":"github.com/726232111/VulIoT/tree/main/D-Link/DIR823G%20V1.0.2B05/HNAP1","hostname":"github.com","tags":[]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2022-11-22T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-04-25T21:07:37.332Z","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":"2026-10-19T23:53:10.436Z","stale":false,"partial":false}}