{"id":"CVE-2016-20017","kind":"vulnerability","aliases":["CVE-2016-20017"],"related":[],"title":"dlink dsl-2750b firmware: D-Link DSL-2750B devices before 1.05 allow remote unauthenticated command injection via the login.cgi cli parameter,…","description":"D-Link DSL-2750B devices contain a command injection vulnerability that allows remote, unauthenticated command injection via the login.cgi cli parameter.\n\nCISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","summary":"D-Link DSL-2750B DSL routers have a command injection flaw in the login.cgi cli parameter. An unauthenticated remote attacker can run arbitrary commands on the device.","severity":"critical","cvss":9.8,"epss":null,"exploited":true,"exploited_at":"2024-01-08T00:00:00+00:00","products":[{"name":"D-Link DSL-2750B Devices","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"dlink dsl-2750b firmware","fixed":["1.05"],"affected":"< 1.05","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["d-link","dsl-2750b","exploited","home-router","infrastructure","isp-cpe"],"not_affected_if":["device-replaced","not-dsl-2750b"],"how_to_check":null,"fix":"Apply mitigations per vendor instructions, or discontinue use of the device if mitigations are unavailable (per CISA KEV).","status":"open","published_at":"2022-10-19T05:15:08+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T21:02:35+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.8,"triage":{"at":"2026-10-23T21:02:35Z","model":"claude-haiku-5-5","output":{"fix":"Apply mitigations per vendor instructions, or discontinue use of the device if mitigations are unavailable (per CISA KEV).","reach":"internet","impact":"high","summary":"D-Link DSL-2750B DSL routers have a command injection flaw in the login.cgi cli parameter. An unauthenticated remote attacker can run arbitrary commands on the device.","category":"infrastructure","who_cares":["d-link","dsl-2750b","home-router","isp-cpe"],"confidence":0.8,"needs_auth":"no","worst_case":"Unauthenticated attacker runs arbitrary commands on the router.","analyst_note":"Confirm the affected firmware versions and vendor mitigation from the D-Link advisory or the CISA KEV entry; sources here do not list them.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["not-dsl-2750b","device-replaced"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000461,"input_tokens":2826,"output_tokens":357,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-20017':27A,30A '-2016':26A,29A '1.05':14A '2750b':4A,11A,36A,41A,48B,62B,91C 'action':111C 'allow':15A,99C 'appli':112C 'arbitrari':81B 'attack':78B 'cisa':109C 'cli':23A,73B,107C 'command':18A,67B,82B,95C,102C 'contain':93C 'cpe':56B 'cve':25A,28A 'd':7A,32A,44B,58B,87C 'd-link':6A,31A,43B,57B,86C 'devic':12A,85B,92C 'devices':37A 'discontinu':118C 'dlink':1A,38A 'dsl':3A,10A,35A,40A,47B,61B,63B,90C 'dsl-2750b':2A,9A,34A,39A,46B,60B,89C 'exploit':49B 'firmwar':5A 'firmware':42A 'flaw':69B 'home':51B 'home-rout':50B 'infrastructur':53B 'inject':19A,68B,96C,103C 'instruct':116C 'isp':55B 'isp-cp':54B 'link':8A,33A,45B,59B,88C 'login.cgi':22A,72B,106C 'mitig':113C,124C 'paramet':24A,74B,108C 'per':114C 'product':122C 'remot':16A,77B,100C 'requir':110C 'router':52B,64B 'run':80B 'unauthent':17A,76B,101C 'unavail':126C 'use':119C 'vendor':115C 'via':20A,104C 'vulner':97C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2022-10-19T05:15:08+00:00","kev":{"dateAdded":"2024-01-08","dueDate":"2024-01-29","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2016-20017","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2016-20017","severity":null,"published_at":"2024-01-08T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T17:39:56+00:00","note":null},{"source":"nvd","external_id":"CVE-2016-20017","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-20017","severity":null,"published_at":"2022-10-19T05:15:08+00:00","modified_at":"2026-06-17T00:43:05+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}