Description
A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/export_pingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTP_COOKIE can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Wavlink | WN531P3 | V250922 | — |
| Wavlink | WN535M1 | V250922 | — |
References
- VDB-391205 | Wavlink WN531P3/WN535M1 Export Pingortrace CGI export_pingortrace.cgi strcpy stack-based overflow vdb-entry technical-description
- VDB-391205 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-74843 | CVE Analysis and Report third-party-advisory
- Submit #875331 | Wavlink WAVLINK_WN535M1-M35M1_V250922 V250922 Buffer Overflow third-party-advisory
- https://github.com/wcndsb-sketch/WAVLINK_WN535M1-M35M1_V250922-Buffer-Overflow/blob/main/CVE-Report-WAVLINK-WN535M1-RCE.pdf exploit