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 …
Published: 2026-01-12 · CVSS: 2.4 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7