CVE-2026-16515

CVE-2026-16515 affects the Zephyr RTOS IPv6 stack in net_icmpv6_send_error() (subsys/net/ip/icmpv6.c), which failed to implement two of the three RFC 4443 §2.4 suppression rules for ICMPv6 error replies. An unauthenticated attacker on the same link can trigger ICMPv6 reflection and amplification ...