CVE-2026-114382
TOTOLINK EX200 lan.so cstecgi.cgi setStaticDhcpConfig stack-based overflow
- State
- Published
- Severity
- 10.0 Critical
- Published
- Oct 21, 2026
- Updated
- Oct 28, 2026
- Reserved
- Oct 21, 2026
Description
A security flaw has been discovered in TOTOLINK EX200 5.2.3c.7200. This affects the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi of the component lan.so. The manipulation of the argument Comment results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
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 |
|---|---|
EX200TOTOLINK |
|
References
- VDB-424741 | TOTOLINK EX200 lan.so cstecgi.cgi setStaticDhcpConfig stack-based overflowvdb-entrytechnical-description
- VDB-424741 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-114382 | CVE Analysis and Reportthird-party-advisory
- Submit #1019881 | TOTOLINK EX200 V5.2.3c.7200 Stack-based Buffer Overflowthird-party-advisory
- https://github.com/qwq-nm/CVE/blob/f5d61361eb7d846479f6d76c0aa4273e9af46d27/CVE1/report.mdexploit
- https://www.totolink.net/product
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