{"id":"CVE-2019-7256","kind":"vulnerability","aliases":["CVE-2019-7256"],"related":[],"title":"Linear eMerge E3-Series devices allow Command Injections","description":"Nice Linear eMerge E3-Series contains an OS command injection vulnerability that allows an attacker to conduct remote code execution.\n\nCISA required action: Contact the vendor for guidance on remediating firmware, per their advisory.","summary":"Nice Linear eMerge E3-Series access control controllers contain an OS command injection flaw. An attacker can send crafted input to run operating system commands on the device.","severity":"critical","cvss":10.0,"epss":null,"exploited":true,"exploited_at":"2024-03-25T00:00:00+00:00","products":[{"name":"Nice Linear eMerge E3-Series","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"nortekcontrol linear emerge essential firmware","fixed":[],"affected":"<= 1.00-06","ecosystem":"vendor"},{"name":"nortekcontrol linear emerge elite firmware","fixed":[],"affected":"<= 1.00-06","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["access-control","emerge-e3","exploited","infrastructure","nice-linear","self-hosted"],"not_affected_if":["unknown"],"how_to_check":null,"fix":"Contact the vendor (Nice Linear) for firmware remediation guidance, per their advisory; CISA lists no fixed version.","status":"open","published_at":"2019-07-02T19:15:11+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T21:00:55+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:00:55Z","model":"claude-haiku-5-5","output":{"fix":"Contact the vendor (Nice Linear) for firmware remediation guidance, per their advisory; CISA lists no fixed version.","reach":"unknown","impact":"high","summary":"Nice Linear eMerge E3-Series access control controllers contain an OS command injection flaw. An attacker can send crafted input to run operating system commands on the device.","category":"infrastructure","who_cares":["nice-linear","emerge-e3","access-control","self-hosted"],"confidence":0.6,"needs_auth":"unknown","worst_case":"Attacker runs arbitrary operating system commands on the controller remotely.","analyst_note":"Find the vendor advisory and affected firmware versions, and whether the flaw needs network reach to the controller; the KEV entry gives no fixed version or check method.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000454,"input_tokens":2815,"output_tokens":345,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2019':11A,14A '-7256':12A,15A 'access':33B,52B 'access-control':32B 'action':98C 'advisori':109C 'allow':7A,88C 'attack':62B,90C 'cisa':96C 'code':94C 'command':8A,58B,71B,84C 'conduct':92C 'contact':99C 'contain':55B,81C 'control':34B,53B,54B 'craft':65B 'cve':10A,13A 'devic':6A,74B 'e3':4A,20A,37B,50B,79C 'e3-series':3A,19A,49B,78C 'elite':30A 'emerg':2A,36B,48B,77C 'emerge':18A,24A,29A 'emerge-e3':35B 'essential':25A 'execut':95C 'exploit':38B 'firmwar':106C 'firmware':26A,31A 'flaw':60B 'guidanc':103C 'host':45B 'infrastructur':39B 'inject':9A,59B,85C 'input':66B 'linear':1A,17A,23A,28A,42B,47B,76C 'nice':16A,41B,46B,75C 'nice-linear':40B 'nortekcontrol':22A,27A 'oper':69B 'os':57B,83C 'per':107C 'remedi':105C 'remot':93C 'requir':97C 'run':68B 'self':44B 'self-host':43B 'send':64B 'seri':5A,51B,80C 'series':21A 'system':70B 'vendor':101C 'vulner':86C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2019-07-02T19:15:11+00:00","kev":{"dateAdded":"2024-03-25","dueDate":"2024-04-15","requiredAction":"Contact the vendor for guidance on remediating firmware, per their advisory.","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-2019-7256","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-7256","severity":null,"published_at":"2024-03-25T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T10:39:05+00:00","note":null},{"source":"nvd","external_id":"CVE-2019-7256","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-7256","severity":null,"published_at":"2019-07-02T19:15:11+00:00","modified_at":"2026-06-17T02:40:19+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"}