CVE-2023-50991

Deeper analysis

A buffer overflow vulnerability exists in the pingSet function of Tenda i29 wireless access point firmware versions 1.0 V1.0.0.5 and 1.0 V1.0.0.2. The flaw is triggered when the pingIp parameter is processed, allowing an attacker to supply crafted input that exceeds expected buffer bounds and results in a denial of service. The issue is tracked as CWE-120 and carries a CVSS 3.1 score of 7.5 reflecting network attack vector, low complexity, and high availability impact with no confidentiality or integrity consequences.

Remote unauthenticated attackers can exploit the vulnerability by sending a malicious HTTP request containing an oversized pingIp value directly to the device's web management interface. Successful exploitation causes the affected process to crash, producing a denial-of-service condition that disrupts device operation until a manual or automatic restart occurs.

Public technical details and proof-of-concept material are available in a GitHub repository that documents the pingSet parameter handling flaw, although no vendor advisory or firmware patch has been referenced in the supplied sources. The associated EPSS score has remained flat at 0.1294 with no material increase since disclosure.