CVE-2026-22213
RIOT OS <= 2026.01-devel-317 Stack-Based Buffer Overflow in tapslip6 Utility
RIOT OS versions up to and including 2026.01-devel-317 contain a stack-based buffer overflow vulnerability in the tapslip6 utility. The vulnerability is caused by unsafe string concatenation in the devopen() function, which constructs a device path using unbounded user-controlled input. The utility uses strcpy() and strcat() to concatenate the fixed prefix '/dev/' with a user-supplied device name provided via the -s command-line option without bounds checking. This allows an attacker to supply an excessively long device name and overflow a fixed-size stack buffer, leading to process crashes and memory corruption.
| CWE | CWE-121 |
| Vendor | riot |
| Product | riot os |
| Published | Jan 12, 2026 |
| Last Updated | May 14, 2026 |
Get instant alerts for riot riot os
Be the first to know when new unknown vulnerabilities affecting riot riot os are published — delivered to Slack, Telegram or Discord.