CVE-2021-26810

Name of the Vulnerable Software and Affected Versions: D-link DIR-816 A2 version 1.10

Description: The issue is related to a remote code injection vulnerability. It involves the use of an HTTP request parameter in command string construction within the handler function of the "/goform/dir setWanWifi" endpoint. This can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.

Recommendations: For D-link DIR-816 A2 version 1.10, as a temporary workaround, consider restricting access to the "/goform/dir setWanWifi" endpoint to minimize the risk of exploitation. Avoid using the statuscheckpppoeuser parameter in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.