{"id":"CVE-2026-24110","aliases":["EUVD-2026-9197","GHSA-jhhp-rvwq-h7p2"],"status":"published","title":"An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long ...","description":"An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function and are processed by `ret = sscanf(pRule, \" %d\\t%[^\\t]\\t%[^\\n\\r\\t]\", \u0026dhcpsIndex, dhcpsIP, dhcpsMac);`, the lack of size validation for the rules could lead to buffer overflows in `dhcpsIndex`, `dhcpsIP`, and `dhcpsMac`.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00484,"percentile":0.42144,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2026-03-02T00:00:00Z","modified":"2026-06-17T10:22:38Z","products":[{"vendor":"tenda","product":"w20e_firmware"}],"references":[{"url":"https://www.tenda.com.cn/material/show/2707","tags":["Product"]},{"url":"https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24110","tags":["Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24110"},{"url":"https://github.com/advisories/GHSA-jhhp-rvwq-h7p2"}],"sources":{"cve":[{"id":"CVE-2026-24110","description":"An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function and are processed by `ret = sscanf(pRule, \" %d\\t%[^\\t]\\t%[^\\n\\r\\t]\", \u0026dhcpsIndex, dhcpsIP, dhcpsMac);`, the lack of size validation for the rules could lead to buffer overflows in `dhcpsIndex`, `dhcpsIP`, and `dhcpsMac`.","status":"published","published":"2026-03-02T00:00:00Z","modified":"2026-03-02T16:07:39.459Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:19:50.575061Z"}],"euvd":[{"id":"EUVD-2026-9197","description":"An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function and are processed by `ret = sscanf(pRule, \" %d\\t%[^\\t]\\t%[^\\n\\r\\t]\", \u0026dhcpsIndex, dhcpsIP, dhcpsMac);`, the lack of size validation for the rules could lead to buffer overflows in `dhcpsIndex`, `dhcpsIP`, and `dhcpsMac`.","status":"published","published":"2026-03-02T00:00:00Z","modified":"2026-03-02T16:07:39Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:48:12.668624Z"}],"ghsa":[{"id":"GHSA-jhhp-rvwq-h7p2","title":"An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long ...","description":"An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function and are processed by `ret = sscanf(pRule, \" %d\\t%[^\\t]\\t%[^\\n\\r\\t]\", \u0026dhcpsIndex, dhcpsIP, dhcpsMac);`, the lack of size validation for the rules could lead to buffer overflows in `dhcpsIndex`, `dhcpsIP`, and `dhcpsMac`.","status":"published","published":"2026-03-02T18:31:44Z","modified":"2026-03-02T18:31:45Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:06:25.813045Z"}],"nvd":[{"id":"CVE-2026-24110","description":"An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function and are processed by `ret = sscanf(pRule, \" %d\\t%[^\\t]\\t%[^\\n\\r\\t]\", \u0026dhcpsIndex, dhcpsIP, dhcpsMac);`, the lack of size validation for the rules could lead to buffer overflows in `dhcpsIndex`, `dhcpsIP`, and `dhcpsMac`.","status":"published","published":"2026-03-02T16:16:24.547Z","modified":"2026-06-17T10:22:38.41Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:12:07.420927Z"}]}}