{"id":"CVE-2026-11409","aliases":["EUVD-2026-37499","GHSA-xwmq-379c-mhf5"],"status":"published","title":"OS Command Injection in IPv6 PPPoE Configuration in TP-Link TL-WR940N","description":"An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.","severity":{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.02787,"percentile":0.86506,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2026-06-16T21:03:47Z","modified":"2026-10-26T12:10:00Z","products":[{"vendor":"tp-link","product":"tl-wr940n_firmware"},{"vendor":"tp-link system inc.","product":"tl-wr940n v6"},{"vendor":"tp-link systems inc.","product":"tl-wr940n v6"}],"references":[{"url":"https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmware","tags":["patch","Product"]},{"url":"https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmware","tags":["patch","Product"]},{"url":"https://www.tp-link.com/us/support/faq/5131/","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-11409"},{"url":"https://www.tp-link.com/us/support/faq/5131"},{"url":"https://github.com/advisories/GHSA-xwmq-379c-mhf5"}],"sources":{"cve":[{"id":"CVE-2026-11409","title":"OS Command Injection in IPv6 PPPoE Configuration in TP-Link TL-WR940N","description":"An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.","status":"published","published":"2026-06-16T21:03:47.128Z","modified":"2026-06-18T03:56:11.66Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:20:05.15083Z"}],"euvd":[{"id":"EUVD-2026-37499","description":"An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.","status":"published","published":"2026-06-16T21:03:47Z","modified":"2026-06-18T03:56:11Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:20:37.064261Z"}],"ghsa":[{"id":"GHSA-xwmq-379c-mhf5","title":"An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration...","description":"An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.","status":"published","published":"2026-06-17T18:35:45Z","modified":"2026-06-18T21:33:34Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:08:54.452189Z"}],"nvd":[{"id":"CVE-2026-11409","description":"An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.","status":"published","published":"2026-06-17T13:19:33.187Z","modified":"2026-10-26T12:10:00.13Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:12:24.544761Z"}]}}