{"id":"CVE-2026-75784","state":"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.","publishedAt":"2026-08-18T14:00:09.095Z","updatedAt":"2026-08-20T17:20:33.880Z","severity":{"score":10,"label":"Critical","version":"4.0","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","source":"VulDB"},"assigner":"VulDB","products":["TRENDnet TEW-WLC100"],"affected":[{"vendor":"TRENDnet","product":"TEW-WLC100","versions":[{"version":"1v2.07b01","status":"affected"}],"cpes":["cpe:2.3:a:trendnet:tew-wlc100:*:*:*:*:*:*:*:*"],"modules":["HTTP Header Handler"]}],"references":["https://vuldb.com/vuln/391525","https://vuldb.com/vuln/391525/cti","https://vuldb.com/cve/CVE-2026-75784","https://vuldb.com/submit/877773","https://github.com/meishigana/CVE/tree/main/team15_20260702/02_wlc100-nginx","https://github.com/meishigana/CVE/blob/main/team15_20260702/02_wlc100-nginx/poc/poc-nginx-overflow.py"],"weaknesses":["CWE-121","CWE-119"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/75xxx/CVE-2026-75784.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-75784","state":"PUBLISHED","datePublished":"2026-08-18T14:00:09.095Z","dateUpdated":"2026-08-20T17:20:33.880Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-18T06:51:23.762Z"},"containers":{"cna":{"title":"TRENDnet TEW-WLC100 HTTP Header nginx FUN_0040da4c stack-based overflow","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"TRENDnet","product":"TEW-WLC100","versions":[{"version":"1v2.07b01","status":"affected"}],"cpes":["cpe:2.3:a:trendnet:tew-wlc100:*:*:*:*:*:*:*:*"],"modules":["HTTP Header Handler"]}],"references":[{"url":"https://vuldb.com/vuln/391525","name":"VDB-391525 | TRENDnet TEW-WLC100 HTTP Header nginx FUN_0040da4c stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/391525/cti","name":"VDB-391525 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-75784","name":"CVE-2026-75784 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/877773","name":"Submit #877773 | TRENDnet TEW-WLC100 TEW-WLC100 Stack-based Buffer Overflow","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"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":10,"vectorString":"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","baseSeverity":"CRITICAL"}},{"cvssV3_1":{"version":"3.1","baseScore":10,"vectorString":"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","baseSeverity":"CRITICAL"}},{"cvssV3_0":{"version":"3.0","baseScore":10,"vectorString":"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","baseSeverity":"CRITICAL"}},{"cvssV2_0":{"version":"2.0","baseScore":10,"vectorString":"AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","type":"CWE","lang":"en","description":"Stack-based Buffer Overflow"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-08-18T14:00:09.095Z"},"timeline":[{"time":"2026-08-18T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-18T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-18T08:56:29.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"fuhanhan2014 (VulDB User)","type":"reporter"}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-20T15:52:19.079542Z","id":"CVE-2026-75784","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-20T17:20:33.880Z"}}]}}}