Unbound is vulnerable to CVE-2025-5994: "Cache poisoning via the ECS-enabled Rebirthday Attack" if built with --enable-subnet, which is not the case in Buildroot, so mark it as not applicable. https://nlnetlabs.nl/downloads/unbound/CVE-2025-5994.txt Signed-off-by: Peter Korsgaard <peter@korsgaard.com>