isakmpd/message.c in isakmpd in FreeBSD before isakmpd-20020403_1, and in OpenBSD 3.1, allows remote attackers to cause a denial of service (crash) by sending Internet Key Exchange (IKE) payloads out of sequence.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.2%