{"id":"CVE-2023-36355","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-36355","generatedAt":"2026-11-04T23:11:11.523Z","title":"TP-Link TL-WR940N V4 was discovered to contain a buffer overflow via the ipStart parameter at /userRpm/WanDynamicIpV6CfgRpm.","description":"TP-Link TL-WR940N V4 was discovered to contain a buffer overflow via the ipStart parameter at /userRpm/WanDynamicIpV6CfgRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.","published":"2023-06-22T20:15:10.000Z","lastModified":"2026-06-17T06:06:05.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-120"],"affected":["tp-link/tl-wr940n firmware"],"epss":{"score":0.31733,"percentile":0.983,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2023-07-03","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":51561,"kind":"exploit","title":"TP-Link TL-WR940N V4 - Buffer OverFlow","url":"https://www.exploit-db.com/exploits/51561","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/dos/51561.py","file":"exploits/hardware/dos/51561.py","published":"2023-07-03","added":"2023-07-03","updated":"2023-07-03","author":"Amirhossein Bahramizadeh","type":"dos","platform":"hardware","port":null,"verified":false,"codes":["CVE-2023-36355"],"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 31.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/173294/TP-Link-TL-WR940N-4-Buffer-Overflow.html","source":"cve@mitre.org"},{"url":"https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/9/TP-Link%20TL-WR940N%20wireless%20router%20userRpmWanDynamicIpV6CfgRpm%20buffer%20write%20out-of-bounds%20vulnerability.md","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/173294/TP-Link-TL-WR940N-4-Buffer-Overflow.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/9/TP-Link%20TL-WR940N%20wireless%20router%20userRpmWanDynamicIpV6CfgRpm%20buffer%20write%20out-of-bounds%20vulnerability.md","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-36355","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."}