cvedb.io
CVE-2026-25139
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2026-02-04T18:16:09.207 · Last modified 2026-06-17T10:24:10.533

Summary

RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Things (IoT) devices and other embedded devices. In version 2025.10 and prior, multiple out-of-bounds read allow any unauthenticated user, with ability to send or manipulate input packets, to read adjacent memory locations, or crash a vulnerable device running the 6LoWPAN stack. The received packet is cast into a sixlowpan_sfr_rfrag_t struct and dereferenced without validating the packet is large enough to contain the struct object. At time of publication, no known patch exists.

Affected products

riot-os — riot

Does this affect you?

Add your gear to cvedb and we'll alert you only when riot-os ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.