{"id":"CVE-2023-40042","aliases":["EUVD-2023-44649","GHSA-vcx8-fvxx-m3v6"],"status":"published","title":"TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in ...","description":"TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in /lib/cste_modules/lan.so. Attackers can send crafted data in an MQTT packet, via the comment parameter, to control the return address and execute code.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01535,"percentile":0.75011,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2023-08-08T00:00:00Z","modified":"2026-06-17T06:15:54Z","products":[{"vendor":"totolink","product":"t10_v2"},{"vendor":"totolink","product":"t10_v2_firmware"}],"references":[{"url":"http://www.totolink.cn","tags":["x_transferred","Not Applicable"]},{"url":"https://github.com/Korey0sh1/IoT_vuln/blob/main/TOTOLINK/T10_V2/setStaticDhcpConfig.md","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/172/ids/36.html","tags":["x_transferred","Product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40042"},{"url":"https://github.com/advisories/GHSA-vcx8-fvxx-m3v6"}],"sources":{"cve":[{"id":"CVE-2023-40042","description":"TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in /lib/cste_modules/lan.so. Attackers can send crafted data in an MQTT packet, via the comment parameter, to control the return address and execute code.","status":"published","published":"2023-08-08T00:00:00Z","modified":"2024-10-10T19:39:02.065Z","updated_at":"2026-11-02T14:35:21.971258Z"}],"euvd":[{"id":"EUVD-2023-44649","description":"TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in /lib/cste_modules/lan.so. Attackers can send crafted data in an MQTT packet, via the comment parameter, to control the return address and execute code.","status":"published","published":"2023-08-08T00:00:00Z","modified":"2024-10-10T19:39:02Z","updated_at":"2026-11-03T00:27:39.67018Z"}],"ghsa":[{"id":"GHSA-vcx8-fvxx-m3v6","title":"TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in ...","description":"TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in /lib/cste_modules/lan.so. Attackers can send crafted data in an MQTT packet, via the comment parameter, to control the return address and execute code.","status":"published","published":"2023-08-08T21:30:38Z","modified":"2024-04-04T06:43:00Z","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-787"],"updated_at":"2026-11-02T14:56:44.910366Z"}],"nvd":[{"id":"CVE-2023-40042","description":"TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in /lib/cste_modules/lan.so. Attackers can send crafted data in an MQTT packet, via the comment parameter, to control the return address and execute code.","status":"published","published":"2023-08-08T19:15:10.873Z","modified":"2026-06-17T06:15:54.36Z","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":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:08:22.812138Z"}]}}