{"id":"CVE-2017-6884","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-6884","generatedAt":"2026-10-28T20:48:39.917Z","title":"Zyxel EMG2926 Routers Command Injection Vulnerability","description":"A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.","published":"2017-04-06T17:59:00.000Z","lastModified":"2026-10-01T19:17:13.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-78"],"affected":["zyxel/emg2926 firmware"],"epss":{"score":0.32976,"percentile":0.9835,"date":"2026-10-27","history":[{"date":"2026-10-16","score":0.32976,"percentile":0.98346}]},"kev":{"listed":true,"dateAdded":"2023-09-18","dueDate":"2023-10-09","knownRansomwareCampaignUse":"Known","notes":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.\nhttps://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-vulnerability-in-emg2926-q10a-ethernet-cpe, https://www.zyxelguard.com/Zyxel-EOL.asp; https://nvd.nist.gov/vuln/detail/CVE-2017-6884"},"exploits":{"count":1,"verified":false,"firstPublished":"2017-04-02","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":41782,"kind":"exploit","title":"Zyxel_ EMG2926 < V1.00(AAQT.4)b8 - OS Command Injection","url":"https://www.exploit-db.com/exploits/41782","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/webapps/41782.txt","file":"exploits/hardware/webapps/41782.txt","published":"2017-04-02","added":"2017-04-03","updated":"2017-04-03","author":"trevor Hough","type":"webapps","platform":"hardware","port":null,"verified":false,"codes":["CVE-2017-6884"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 9 October 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://www.exploit-db.com/exploits/41782/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/41782/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6884","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-6884","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}