CVE-2026-109109
Wavlink WL-WN530BE1-A Settings Export CGI ExportAllSettings.cgi strcpy stack-based overflow
- State
- Published
- Severity
- 10.0 Critical
- Published
- Oct 13, 2026
- Updated
- Oct 14, 2026
- Reserved
- Oct 12, 2026
Description
A vulnerability was detected in Wavlink WL-WN530BE1-A 251117. This vulnerability affects the function strcpy of the file /cgi-bin/ExportAllSettings.cgi of the component Settings Export CGI. Performing a manipulation of the argument HTTP_COOKIE/X-Cmd results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.
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:C | 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:C | VulDB |
| 2.0 | 10.0 High | AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WL-WN530BE1-AWavlink |
|
References
- VDB-416860 | Wavlink WL-WN530BE1-A Settings Export CGI ExportAllSettings.cgi strcpy stack-based overflowvdb-entrytechnical-description
- VDB-416860 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-109109 | CVE Analysis and Reportthird-party-advisory
- Submit #909191 | Wavlink WL-WN530BE1-A M30BE1_V251117 Stack-based Buffer Overflowthird-party-advisory
- https://gist.github.com/Rauzk/9ef4fe7574e5689386cc43139f4cf9e1broken-linkexploit
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