CVE-2025-11444
TOTOLINK N600R HTTP Request cstecgi.cgi setWiFiBasicConfig buffer overflow
- State
- Published
- Severity
- 8.7 High
- Published
- Oct 8, 2025
- Updated
- Feb 24, 2026
- Reserved
- Oct 7, 2025
Description
A security vulnerability has been detected in TOTOLINK N600R up to 4.3.0cu.7866_B20220506. This impacts the function setWiFiBasicConfig of the file /cgi-bin/cstecgi.cgi of the component HTTP Request Handler. Such manipulation of the argument wepkey leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 3.0 | 8.8 High | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 9.0 High | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
N600RTOTOLINK |
|
References
- VDB-327381 | TOTOLINK N600R HTTP Request cstecgi.cgi setWiFiBasicConfig buffer overflowvdb-entrytechnical-description
- VDB-327381 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #666915 | TOTOLINK N600R firmware V4.3.0cu.7866_B20220506 Buffer Overflowthird-party-advisory
- https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.mdexploit
- https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.md#reproduceexploit
- https://www.totolink.net/product
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