CVE-2026-41285

In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery (ND) option (over a local network) with length zero, because of an “nd_opt_len * 8 – 2” expression with no preceding check for whether nd_opt_len is zero.

More information : https://github.com/openbsd/src/commit/086c5738bcd3c203bcc08d024fcf983cb409115f