CVE-2026-51843

Name of the Vulnerable Software and Affected Versions Tenda AC7 version 15.03.06.44

Description A stack buffer overflow occurs in the '/goform/AdvSetMacMtuWan' endpoint through the wanMTU parameter. A stack buffer overflow is a condition where a program writes more data to a buffer located on the stack than the buffer is allocated to hold, potentially leading to crashes or arbitrary code execution.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, avoid using the wanMTU parameter in the '/goform/AdvSetMacMtuWan' endpoint.