{"id":"CVE-2026-75784","aliases":["EUVD-2026-60773","GHSA-xvh6-w8q3-q5g8"],"status":"published","title":"TRENDnet TEW-WLC100 HTTP Header nginx FUN_0040da4c stack-based overflow","description":"A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of the file /usr/nginx/sbin/nginx of the component HTTP Header Handler. The manipulation of the argument Server results in stack-based buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.","severity":{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01096,"percentile":0.65794,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-121"],"published":"2026-08-18T14:00:09Z","modified":"2026-10-22T22:10:00Z","products":[{"vendor":"trendnet","product":"tew-wlc100"}],"references":[{"url":"https://vuldb.com/vuln/391525","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/391525/cti","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-75784","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/877773","tags":["third-party-advisory"]},{"url":"https://github.com/meishigana/CVE/tree/main/team15_20260702/02_wlc100-nginx","tags":["related"]},{"url":"https://github.com/meishigana/CVE/blob/main/team15_20260702/02_wlc100-nginx/poc/poc-nginx-overflow.py","tags":["exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75784"},{"url":"https://github.com/advisories/GHSA-xvh6-w8q3-q5g8"}],"sources":{"cve":[{"id":"CVE-2026-75784","title":"TRENDnet TEW-WLC100 HTTP Header nginx FUN_0040da4c stack-based overflow","description":"A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of the file /usr/nginx/sbin/nginx of the component HTTP Header Handler. The manipulation of the argument Server results in stack-based buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.","status":"published","published":"2026-08-18T14:00:09.095Z","modified":"2026-08-20T17:20:33.88Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"critical","assessor":"cna"},{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","level":"critical","assessor":"cna"},{"version":"3.0","score":10,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","level":"critical","assessor":"cna"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-121","CWE-119"],"updated_at":"2026-11-02T14:20:07.609948Z"}],"euvd":[{"id":"EUVD-2026-60773","description":"A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of the file /usr/nginx/sbin/nginx of the component HTTP Header Handler. The manipulation of the argument Server results in stack-based buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.","status":"published","published":"2026-08-18T14:00:09Z","modified":"2026-08-20T17:20:33Z","cvss":[{"version":"4.0","score":10,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"critical"}],"updated_at":"2026-11-02T18:01:39.250559Z"}],"ghsa":[{"id":"GHSA-xvh6-w8q3-q5g8","title":"A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the...","description":"A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of the file /usr/nginx/sbin/nginx of the component HTTP Header Handler. The manipulation of the argument Server results in stack-based buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.","status":"published","published":"2026-08-18T15:31:49Z","modified":"2026-08-18T15:32:01Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"},{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:10:37.069016Z"}],"nvd":[{"id":"CVE-2026-75784","description":"A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of the file /usr/nginx/sbin/nginx of the component HTTP Header Handler. The manipulation of the argument Server results in stack-based buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.","status":"published","published":"2026-08-18T15:17:13.857Z","modified":"2026-10-22T22:10:00.25Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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":"critical","assessor":"secondary"},{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"secondary"}],"cwes":["CWE-119","CWE-121"],"updated_at":"2026-11-02T14:12:38.976695Z"}]}}