CVE-2023-24818: Riot-OS Riot

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in a NULL pointer dereference. During forwarding of a fragment an uninitialized entry in the reassembly buffer is used. The NULL pointer dereference triggers a hard fault exception resulting in denial of service. Version 2022.10 fixes this issue. As a workaround, disable support for fragmented IP datagrams or apply the patches manually.

Affected products

• Riot-OS Riot: before 2022.10 (fixed in 2022.10)

Published 2023-04-24. Last modified 2026-06-17.