CVE-2021-21962

Name of the Vulnerable Software and Affected Versions SeaConnect 370W version 1.3.34

Description A heap-based buffer overflow issue exists in the OTA Update u-download functionality. This can be triggered by a series of specially-crafted MQTT payloads, potentially leading to remote code execution. An attacker would need to perform a man-in-the-middle attack to exploit this issue.

Recommendations For SeaConnect 370W version 1.3.34, consider restricting access to the OTA Update u-download functionality until a fix is available. As a temporary workaround, restrict the use of MQTT payloads to minimize the risk of exploitation.