TP-LINK Archer C50v2 Archer C50(US)_V2_160801, TP-LINK Archer C20v1 Archer_C20_V1_150707, and TP-LINK Archer C2v1 Archer_C2_US__V1_170228 were discovered to contain a buffer overflow which may lead to a Denial of Service (DoS) when parsing crafted data.
https://www.tp-link.com/us/support/download/archer-c50/v2/#Firmware%29%2CTPLINK
https://www.tp-link.com/us/support/download/archer-c50/v2/#Firmware
https://www.tp-link.com/us/support/download/archer-c2/v1/#Firmware
https://gist.github.com/a2ure123/a4eda2813d85d8b414bb87e855ab4bf8