{"id":"CVE-2019-3921","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-3921","generatedAt":"2026-11-05T03:13:43.667Z","title":"The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 is vulnerable to a stack buffer overflow via crafted HTTP POST request sent by a remote, authenticated attacker to /GponForm/usb_Form?script/.","description":"The Alcatel Lucent I-240W-Q GPON ONT using firmware version 3FE54567BOZJ19 is vulnerable to a stack buffer overflow via crafted HTTP POST request sent by a remote, authenticated attacker to /GponForm/usb_Form?script/. An attacker can leverage this vulnerability to potentially execute arbitrary code.","published":"2019-03-05T21:29:00.000Z","lastModified":"2026-06-17T02:35:52.000Z","status":"Modified","sourceIdentifier":"vulnreport@tenable.com","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-121","CWE-787"],"affected":["nokia/i-240w-q gpon ont firmware"],"epss":{"score":0.17891,"percentile":0.97181,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2019-02-28","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46469,"kind":"exploit","title":"Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow","url":"https://www.exploit-db.com/exploits/46469","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/remote/46469.py","file":"exploits/hardware/remote/46469.py","published":"2019-02-28","added":"2019-02-28","updated":"2019-03-07","author":"Artem Metla","type":"remote","platform":"hardware","port":null,"verified":false,"codes":["CVE-2019-3921"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 17.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://www.exploit-db.com/exploits/46469/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"vulnreport@tenable.com"},{"url":"https://www.tenable.com/security/research/tra-2019-09","tags":["Exploit","Third Party Advisory"],"source":"vulnreport@tenable.com"},{"url":"https://www.exploit-db.com/exploits/46469/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.tenable.com/security/research/tra-2019-09","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-3921","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."}