{"id":"CVE-2018-20336","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-20336","generatedAt":"2026-10-28T20:12:55.477Z","title":"There is a stack-based buffer overflow issue in parse_req_queries function in wanduck.c via a long string over UDP, which may lead to an information leak.","description":"An issue was discovered in ASUSWRT 3.0.0.4.384.20308. There is a stack-based buffer overflow issue in parse_req_queries function in wanduck.c via a long string over UDP, which may lead to an information leak.","published":"2019-09-17T16:15:11.000Z","lastModified":"2026-06-17T01:52:39.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-120"],"affected":["asus/asuswrt-merlin"],"epss":{"score":0.01733,"percentile":0.77519,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://starlabs.sg/advisories/18-20336/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.asus.com/Networking/RT-AC1200G-plus/HelpDesk_BIOS/","source":"cve@mitre.org"},{"url":"https://starlabs.sg/advisories/18-20336/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.asus.com/Networking/RT-AC1200G-plus/HelpDesk_BIOS/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-20336","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."}