Security Bulletin: IBM i is affected by BIND accepting records with untrusted data, predictable port and query ID, and resource exhaustions in Domain Name System due to multiple vulnerabilities.

Summary Domain Name System for IBM i is vulnerable to BIND accepting records with forged data CVE-2025-40778, prediction of port and ID due to weakness in pseudo random number generator CVE-2025-40780, various resource exhaustions when being flooded with valid or invalid HTTP/2 traffic...