Description (CNA)
RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Things (IoT) devices and other embedded devices. In 2026.01 and earlier, the default handler for the well_known_core resource coap_well_known_core_default_handler writes user-provided option data and other data into a fixed size buffer without validating the buffer is large enough to contain the response. This vulnerability allows an attacker to corrupt neighboring stack location, including security-sensitive addresses like the return address, leading to denial of service or arbitrary code execution.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| RIOT-OS / RIOT | affected <= 2026.01 |
CWE
CWE-787
References
ADP enrichment
No English description supplied.
No references supplied.