The vulnerability involves improper integer handling in the cobs_decode function within the SpaceDot AcubeSAT On-Board Computer (OBC) software at commit eaf90ec. An attacker with physical access to the UART interface can send specially crafted input to trigger a Denial of Service condition. The flaw is due to how the function processes input data, leading to a crash or halt of the system. No CVSS score or detailed vendor advisory is available, and no patch or mitigation details have been provided.

An attacker with physical proximity and UART access can cause a Denial of Service on the affected SpaceDot AcubeSAT OBC device by exploiting the integer handling flaw. This could disrupt the normal operation of the satellite's onboard computer, potentially impacting mission-critical functions. There is no indication of remote exploitation or data compromise from the available information.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict physical access to UART interfaces and monitor for unauthorized physical interactions with the device.