CVE-2026-114382 Details
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.
A stack-based buffer overflow vulnerability has been identified in the TOTOLINK EX200 300Mbps Wireless Range Extender, specifically in the firmware version 5.2.3c.7200. The issue arises in the web management interface within the 'setStaticDhcpConfig' function, located in the '/cgi-bin/cstecgi.cgi' file. The vulnerability can be exploited remotely without authentication by sending an overly long 'comment' parameter, leading to stack corruption. This flaw could cause a denial-of-service condition by crashing the web management service, and potentially allow for arbitrary code execution due to the nature of the stack overflow.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 21, 2026CISA-ADP
Assessed Oct 28, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/qwq-nm/CVE/blob/f5d61361eb7d846479f6d76c0aa4273e9af46d27/CVE1/report.md | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/cve/CVE-2026-114382 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1019881 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/424741 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/424741/cti | [email protected] | Content Wall |
| https://www.totolink.net/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| TOTOLINK EX200 | V5.2.3c.7200 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 28, 2026 | CVE Modified | CISA-ADP |
| Oct 21, 2026 | New CVE Received | [email protected] |