CVE-2026-10848: Out-of-bounds Read

The OCPP 1.6 client in subsys/net/lib/ocpp parsed inbound WAMP RPC frames in parserpcmsg subsys/net/lib/ocpp/ocppj.c using a hand-rolled helper, extractstringfield, that copied the message's uid and action fields with strncpyoutbuf, token + 1, outlen - 1 and then scanned the result with...