{"id":"CVE-2026-110957","published":"2026-10-15T15:17:30.640","lastModified":"2026-10-15T19:56:13.350","description":"A vulnerability has been found in Wavlink WL-WN530BE2-A up to M30BE2_V250604. The affected element is the function sub_12580 of the file api.cgi of the component Login Processing. The manipulation of the argument REMOTE_ADDR leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to fix this issue. You should upgrade the affected component. 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.\"","cvssScore":10,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cwes":["CWE-77","CWE-78"],"vendors":[],"products":[],"references":[{"url":"https://dl.wavlink.com/firmware/RD/WN530BE2_WAVLINK-WO-2026-09-24-841a51c6d5_tclinux.bin","tags":[]},{"url":"https://github.com/F-yyjy/cve/blob/main/WN530BE2-A_api-cgi.md","tags":[]},{"url":"https://vuldb.com/cve/CVE-2026-110957","tags":[]},{"url":"https://vuldb.com/submit/920217","tags":[]},{"url":"https://vuldb.com/vuln/420570","tags":[]},{"url":"https://vuldb.com/vuln/420570/cti","tags":[]}],"exploitRefs":[{"url":"https://github.com/F-yyjy/cve/blob/main/WN530BE2-A_api-cgi.md","tags":[]}],"hasPoc":true,"ai":{"summary":"A command injection vulnerability exists in Wavlink router firmware where the REMOTE_ADDR parameter is improperly handled during login processing, allowing remote attackers to execute arbitrary OS commands with high privileges. This affects the api.cgi component and can lead to complete system compromise.","exploitability":"The vulnerability is highly exploitable with no authentication required, as it can be triggered remotely through the api.cgi endpoint without any preconditions.","blast_radius":"The flaw impacts all Wavlink WL-WN530BE2-A routers running firmware versions up to M30BE2_V250604, potentially affecting thousands of devices in home and small office networks.","remediation":"Upgrade to the fixed firmware version 2026-09-24-841a51c6d5_tclinux.bin immediately to resolve this critical command injection vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","command-injection","router","network"],"model":"garnet-coder","analyzedAt":"2026-10-16T08:42:48.313Z"}}