TP-Link NC200 through 2.1.8_Build_171109, NC210 through 1.0.9_Build_171214, NC220 through 1.3.0_Build_180105, NC230 through 1.3.0_Build_171205, NC250 through 1.3.0_Build_171205, NC260 through 1.5.1_Build_190805, and NC450 through 1.5.0_Build_181022 devices allow a remote NULL Pointer Dereference.
tp-link
CVE-2019-6989
TP-Link TL-WR940N is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the ipAddrDispose function. By sending specially crafted ICMP echo request packets, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges.
CVE-2019-6972
An issue was discovered on TP-Link TL-WR1043ND V2 devices. The credentials can be easily decoded and cracked by brute-force, WordList, or Rainbow Table attacks. Specifically, credentials in the “Authorization” cookie are encoded with URL encoding and base64, leading to easy decoding. Also, the username is cleartext, and the password is hashed with the MD5 algorithm (after decoding of the URL encoded string with base64).
CVE-2019-6971
An issue was discovered on TP-Link TL-WR1043ND V2 devices. An attacker can send a cookie in an HTTP authentication packet to the router management web interface, and fully control the router without knowledge of the credentials.
CVE-2019-6487
TP-Link WDR Series devices through firmware v3 (such as TL-WDR5620 V3.0) are affected by command injection (after login) leading to remote code execution, because shell metacharacters can be included in the weather get_weather_observe citycode field.
CVE-2019-19143
TP-LINK TL-WR849N 0.9.1 4.16 devices do not require authentication to replace the firmware via a POST request to the cgi/softup URI.