CVE-2026-110958Wavlink WN530HG4B api.cgi heap-based overflow
Descripción
A vulnerability was found in Wavlink WN530HG4B M30HG4B_V260724. The impacted element is an unknown function of the file api.cgi. The manipulation results in heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to resolve this issue. The affected component should be upgraded. The vendor confirms: "We confirm the finding, and it has already been addressed. In the current firmware the api=info&client=app handler no longer builds a shell command: the login script is now invoked through an argument vector (execvp) instead of system(), and the client address is length-limited and null-checked."
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
Referencias y parches
- VDB-420571 | Wavlink WN530HG4B api.cgi heap-based overflow vdb-entry
- VDB-420571 | CTI Indicators (IOB, IOC, IOA) signature
- CVE-2026-110958 | CVE Analysis and Report third-party-advisory
- Submit #933388 | Wavlink WN530HG4B M30HG4B_V260724 Heap-based Buffer Overflow third-party-advisory
- https://drive.google.com/file/d/12OOh8g9YDCbD-Q4cc52J6TH9KuOoD44A/view?usp=drive_link exploit
- https://dl.wavlink.com/firmware/RD/WN530BE2_WAVLINK-WO-2026-09-24-841a51c6d5_tclinux.bin patch