Wavlink · Wl-Wn530Hg3 · CVE-2025-5408
**Name of the Vulnerable Software and Affected Versions**
WAVLINK QUANTUM D2G, QUANTUM D3G, WL-WN530G3A, WL-WN530HG3, WL-WN532A3, and WL-WN576K1 versions up to V1410 240222
**Description**
A critical issue was found in the affected devices, classified as critical. The problem lies in the function `sys login` of the file `/cgi-bin/login.cgi` of the component HTTP POST Request Handler. The manipulation of the argument `login page` leads to buffer overflow. This issue can be exploited remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
**Recommendations**
For WAVLINK QUANTUM D2G, QUANTUM D3G, WL-WN530G3A, WL-WN530HG3, WL-WN532A3, and WL-WN576K1 versions up to V1410 240222, consider disabling the `sys login` function in the `/cgi-bin/login.cgi` file as a temporary workaround until a patch is available.
Restrict access to the `/cgi-bin/login.cgi` file to minimize the risk of exploitation.
Avoid using the `login page` argument in the affected HTTP POST Request Handler until the issue is resolved.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.