CVE-2023-46527

Vulnerability

A stack overflow vulnerability exists in TP-LINK TL-WR886N V7.0 (firmware version 3.0.14_Build_221115_Rel.56908n.bin) and TP-LINK TL-WDR7660 (version 2.0.30). The flaw resides in the bindRequestHandle function, which does not properly validate input length, allowing an attacker to trigger a stack-based buffer overflow [1].

Exploitation

An attacker with network access to the affected device and the ability to send crafted packets to the vulnerable function can exploit this issue. The attack does not require authentication. By sending a specially crafted request to the bindRequestHandle function, the attacker can overflow the stack and overwrite critical data [1].

Impact

Successful exploitation can lead to arbitrary code execution with root privileges, resulting in complete compromise of the device's confidentiality, integrity, and availability. The attacker can gain full control over the router [1].

Mitigation

As of the publication date (2023-10-25), no official patch has been released by TP-LINK. Users should monitor vendor advisories for firmware updates. No workarounds are documented [1].