BIND before 9.2.6-P1 and 9.3.x before 9.3.2-P1 allows remote attackers to cause a denial of service (crash) via a flood of recursive queries, which cause an INSIST failure when the response is received after the recursion queue is empty.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.245
EPSS Ranking 95.8%