CVSS 3.1 Score 9.8 of 10 (high)


Published Aug 8, 2023
Updated: Aug 11, 2023
CWE ID 787


CVE-2023-40042 is a stack-based buffer overflow vulnerability found in TOTOLINK T10_v2 5.9c.5061_B20200511. The vulnerability exists in the setStaticDhcpConfig function in the module. Attackers can exploit this vulnerability by sending crafted data through an MQTT packet's comment parameter, allowing them to control the return address and execute arbitrary code. The vulnerability has a CVSSv3 base severity score of 9.8 (Critical) and poses a high risk to organizations as it can lead to unauthorized code execution with elevated privileges, potentially compromising the confidentiality, integrity, and availability of affected systems. It is advised to apply relevant patches or updates provided by the vendor to remediate this vulnerability.


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