RIOT OS versions up to and including 2026.01-devel-317 contain a stack-based buffer overflow vulnerability in the ethos utility due to missing bounds checking when processing incoming serial frame data. The vulnerability occurs in the _handle_char() function, where incoming frame bytes are appended to a fixed-size stack buffer without verifying that the current write index remains within bounds. This cond [truncated]
A stack-based buffer overflow vulnerability exists in the tapslip6 utility of RIOT OS versions up to and including 2026.01-devel-317. The vulnerability is caused by unsafe string concatenation in the devopen() function, which constructs a device path using unbounded user-controlled input. This allows an attacker to supply an excessively long device name and overflow a fixed-size stack buffer, leading to p [truncated]
