EUVD-2026-88474

The CoAP link-format helper matchpathuri in subsys/net/lib/coap/coaplinkformat.c compares a registered resource path against the URI carried in a Uri-Query href= option. That URI is not NUL terminated, but the inner character loop advanced its index k once per path character without ever testing ...

CVE-2026-18416: Out-of-bounds Read

The CoAP link-format helper matchpathuri in subsys/net/lib/coap/coaplinkformat.c compares a registered resource path against the URI carried in a Uri-Query href= option. That URI is not NUL terminated, but the inner character loop advanced its index k once per path character without ever testing ...

PT-2026-102355

Name of the Vulnerable Software and Affected Versions ZoAP versions 1.8.0 through 1.9.x Description The CoAP link-format helper match path uri in subsys/net/lib/coap/coap link format.c contains an out-of-bounds read. The issue occurs when comparing a registered resource path against a URI in a...

CVE-2026-27703 RIOT has an Out-of-Bounds Write in nanoCoAP Handler

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 wellknowncore resource coapwellknowncoredefaulthandler writes user-provided option data and...

CVE-2026-27703 RIOT has an Out-of-Bounds Write in nanoCoAP Handler

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 wellknowncore resource coapwellknowncoredefaulthandler writes user-provided option data and...