A vulnerability described as problematic has been identified in zephyrproject zephyr up to 4.4.x . Affected is an unknown function of the file subsys/net/ip/ipv6_nbr.c . The manipulation of the argument regular results in incorrect control flow. This vulnerability is identified as CVE-2026-7656 . The attack can only be performed from the local network. There is not any exploit available. Upgrading the affected component is recommended.