A vulnerability was discovered in Tenda AC9 v3.0 V15.03.06.42_multi and Tenda AC9 V1.0 V15.03.05.19(6318)_CN which allows for remote code execution via shell metacharacters in the guestuser field to the __fastcall function with a POST request.Referenceshttps://github.com/Lyc-heng/Router/blob/main/Tenda/rce1.mdhttps://github.com/Lyc-heng/routers/blob/a80b30bccfc9b76f3a4868ff28ad5ce2e0fca180/routers/rce1.mdhttps://github.com/Lyc-heng/routers/blob/main/routers/rce1.md
