Multiple vulnerabilities impact AIX due to ISC BIND (CVE-2025-40778 CVE-2025-40780 CVE-2025-8677)

IBM SECURITY ADVISORY First Issued: Wed Feb 18 08:49:11 CST 2026 The most recent version of this document is available here: https://aix.software.ibm.com/aix/efixes/security/bindadvisory29.asc Security Bulletin: Multiple vulnerabilities impact AIX due to ISC BIND CVE-2025-40778, CVE-2025-40780,...

CVE-2025-40780

A vulnerability was found in BIND resolvers caused by a weakness in the Pseudo Random Number Generator PRNG. This weakness allows an attacker to potentially predict the source port and query ID used by BIND, enabling cache poisoning attacks. If successful, the attacker can inject malicious DNS...

CVE-2025-40780 Cache poisoning due to weak PRNG

In specific circumstances, due to a weakness in the Pseudo Random Number Generator PRNG that is used, it is possible for an attacker to predict the source port and query ID that BIND will use. This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.1...

ISC BIND DNS Query ID Field Prediction Cache Poisoning (deprecated)

Binary data 4578.prm...