Vulnerability Details CVE-2026-22213
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 3.6%
CVSS Severity
CVSS v3 Score 9.8
References
Products affected by CVE-2026-22213
-
cpe:2.3:o:riot-os:riot:2013.08
-
cpe:2.3:o:riot-os:riot:2014.01
-
cpe:2.3:o:riot-os:riot:2014.05
-
cpe:2.3:o:riot-os:riot:2014.12
-
cpe:2.3:o:riot-os:riot:2015.09
-
cpe:2.3:o:riot-os:riot:2015.12
-
cpe:2.3:o:riot-os:riot:2016.04
-
cpe:2.3:o:riot-os:riot:2016.07
-
cpe:2.3:o:riot-os:riot:2016.10
-
cpe:2.3:o:riot-os:riot:2017.01
-
cpe:2.3:o:riot-os:riot:2017.04
-
cpe:2.3:o:riot-os:riot:2017.07
-
cpe:2.3:o:riot-os:riot:2017.10
-
cpe:2.3:o:riot-os:riot:2018.01
-
cpe:2.3:o:riot-os:riot:2018.04
-
cpe:2.3:o:riot-os:riot:2018.07
-
cpe:2.3:o:riot-os:riot:2018.10
-
cpe:2.3:o:riot-os:riot:2018.10.1
-
cpe:2.3:o:riot-os:riot:2019.01
-
cpe:2.3:o:riot-os:riot:2019.04
-
cpe:2.3:o:riot-os:riot:2019.07
-
cpe:2.3:o:riot-os:riot:2019.10
-
cpe:2.3:o:riot-os:riot:2020.01
-
cpe:2.3:o:riot-os:riot:2020.01.1
-
cpe:2.3:o:riot-os:riot:2020.04
-
cpe:2.3:o:riot-os:riot:2021.01
-
cpe:2.3:o:riot-os:riot:2021.04
-
cpe:2.3:o:riot-os:riot:2021.07
-
cpe:2.3:o:riot-os:riot:2021.10
-
cpe:2.3:o:riot-os:riot:2022.01
-
cpe:2.3:o:riot-os:riot:2022.04
-
cpe:2.3:o:riot-os:riot:2022.07
-
cpe:2.3:o:riot-os:riot:2022.10
-
cpe:2.3:o:riot-os:riot:2023.01
-
cpe:2.3:o:riot-os:riot:2023.04
-
cpe:2.3:o:riot-os:riot:2023.07
-
cpe:2.3:o:riot-os:riot:2023.10
-
cpe:2.3:o:riot-os:riot:2024.01
-
cpe:2.3:o:riot-os:riot:2024.04
-
cpe:2.3:o:riot-os:riot:2024.07
-
cpe:2.3:o:riot-os:riot:2024.10
-
cpe:2.3:o:riot-os:riot:2025.01
-
cpe:2.3:o:riot-os:riot:2025.04
-
cpe:2.3:o:riot-os:riot:2025.07
-
cpe:2.3:o:riot-os:riot:2026.01