{"id":"CVE-2023-36355","aliases":["EUVD-2023-40323","GHSA-p3q7-28hc-q76h"],"status":"published","title":"TP-Link TL-WR940N V4 was discovered to contain a buffer overflow via the ipStart parameter at ...","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.","severity":{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.31733,"percentile":0.98309,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-120"],"published":"2023-06-22T00:00:00Z","modified":"2026-06-17T06:06:05Z","exploits":[{"source":"exploitdb","id":"EDB-51561","title":"TP-Link TL-WR940N V4 - Buffer OverFlow","type":"dos","platform":"hardware","date":"2023-07-03","url":"https://www.exploit-db.com/exploits/51561"}],"products":[{"vendor":"tp-link","product":"tl-wr940n_firmware"},{"vendor":"tp-link","product":"tl-wr940n_v4"}],"references":[{"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":["x_transferred","Exploit","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/173294/TP-Link-TL-WR940N-4-Buffer-Overflow.html","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-36355"},{"url":"https://github.com/advisories/GHSA-p3q7-28hc-q76h"}],"sources":{"cve":[{"id":"CVE-2023-36355","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.","status":"published","published":"2023-06-22T00:00:00Z","modified":"2024-12-02T19:02:22.037Z","updated_at":"2026-11-02T14:35:27.810438Z"}],"euvd":[{"id":"EUVD-2023-40323","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.","status":"published","published":"2023-06-22T00:00:00Z","modified":"2024-12-02T19:02:22Z","updated_at":"2026-11-03T00:04:43.613884Z"}],"ghsa":[{"id":"GHSA-p3q7-28hc-q76h","title":"TP-Link TL-WR940N V4 was discovered to contain a buffer overflow via the ipStart parameter at ...","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.","status":"published","published":"2023-06-22T21:30:49Z","modified":"2024-04-04T05:07:20Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:56:29.503716Z"}],"nvd":[{"id":"CVE-2023-36355","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.","status":"published","published":"2023-06-22T20:15:09.733Z","modified":"2026-06-17T06:06:05.477Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:08:12.414559Z"}]}}