A vulnerability was found in Tenda AC15 15.03.05.18/15.03.20multi. It has been classified as critical. This affects the function formWriteFacMac of the file /goform/WriteFacMac. The manipulation of the argument mac 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. The associated identifier of this vulnerability is VDB-257667. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Tenda AC15V1.0 V15.03.20multi has a command injection vulnerability via the deviceName parameter.

Tenda AC15 USAC15V1.0BRV15.03.05.20multiTDE01.bin is vulnerable to Buffer Overflow. The stack overflow vulnerability lies in the /goform/setpptpservercfg interface of the web. The sent post data startip and endip are copied to the stack using the sanf function, resulting in stack overflow. Similarly, this vulnerability can be used together with CVE-2021-44971

A vulnerability has been found in Tenda AC15 15.03.05.19. This affects the function formSetCfm of the file /goform/setcfm of the component POST Request Handler. The manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.