CVE-2026-14368 Off-by-one out-of-bounds NUL write in Zephyr LwM2M JSON string parser

The LwM2M JSON content formatter's getstring in subsys/net/lib/lwm2m/lwm2mrwjson.c copies a parsed JSON string into a caller-supplied buffer and NUL-terminates it. The length guard used if stringlength buflen, which accepts a string whose length is exactly buflen. After memcpy fills the whole...

EUVD-2026-68723

The LwM2M JSON content formatter's getstring in subsys/net/lib/lwm2m/lwm2mrwjson.c copies a parsed JSON string into a caller-supplied buffer and NUL-terminates it. The length guard used if stringlength buflen, which accepts a string whose length is exactly buflen. After memcpy fills the whole...