Buffer overflow in Riot Os
CVE-2026-22214
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 _han…
Vulnerability class: Buffer Overflow
EPSS: 0.004 (31.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Riot Os — versions 0
- Riot-os Riot — versions 2026.01
Weakness classification (CWE)
References
- disclosure@vulncheck.com (technical-description, Mailing List, Third Party Advisory, exploit)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-22214?
- CVE-2026-22214 is a critical-severity vulnerability in Riot Os, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-01-12.
- How severe is CVE-2026-22214?
- Critical severity. CVSS v3 base score is 9.8 out of 10.