{"id":"CVE-2019-6989","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-6989","generatedAt":"2026-10-27T23:36:31.958Z","title":"TP-Link TL-WR940N is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the ipAddrDispose function.","description":"TP-Link TL-WR940N is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the ipAddrDispose function. By sending specially crafted ICMP echo request packets, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges.","published":"2019-06-06T18:29:00.000Z","lastModified":"2026-06-17T02:39:53.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.8,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["tp-link/tl-wr940n firmware","tp-link/tl-wr941nd firmware"],"epss":{"score":0.11374,"percentile":0.95961,"date":"2026-10-26","history":[{"date":"2026-09-21","score":0.10109,"percentile":0.95491},{"date":"2026-09-22","score":0.1158,"percentile":0.95841}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2019-04-09","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46678,"kind":"exploit","title":"TP-LINK TL-WR940N / TL-WR941ND - Buffer Overflow","url":"https://www.exploit-db.com/exploits/46678","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/remote/46678.py","file":"exploits/hardware/remote/46678.py","published":"2019-04-09","added":"2019-04-09","updated":"2019-04-09","author":"Grzegorz Wypych","type":"remote","platform":"hardware","port":80,"verified":false,"codes":["CVE-2019-6989"],"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 11.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/152458/TP-LINK-TL-WR940N-TL-WR941ND-Buffer-Overflow.html","source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/46678/","source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/152458/TP-LINK-TL-WR940N-TL-WR941ND-Buffer-Overflow.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/46678/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-6989","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."}