CVE-2026-75784
TRENDnet TEW-WLC100 HTTP Header nginx FUN_0040da4c stack-based overflow
- State
- Published
- Severity
- 10.0 Critical
- Published
- Aug 18, 2026
- Updated
- Aug 20, 2026
- Reserved
- Aug 18, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 10.0 Critical | 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 | VulDB |
| 3.1 | 10.0 Critical | 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 | VulDB |
| 3.0 | 10.0 Critical | 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 | VulDB |
| 2.0 | 10.0 High | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
TEW-WLC100TRENDnet |
|
References
- VDB-391525 | TRENDnet TEW-WLC100 HTTP Header nginx FUN_0040da4c stack-based overflowvdb-entrytechnical-description
- VDB-391525 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-75784 | CVE Analysis and Reportthird-party-advisory
- Submit #877773 | TRENDnet TEW-WLC100 TEW-WLC100 Stack-based Buffer Overflowthird-party-advisory
- https://github.com/meishigana/CVE/tree/main/team15_20260702/02_wlc100-nginxrelated
- https://github.com/meishigana/CVE/blob/main/team15_20260702/02_wlc100-nginx/poc/poc-nginx-overflow.pyexploit
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