CVE-2026-28810 Predictable DNS Transaction IDs Enable Cache Poisoning in Built-in Resolver

Generation of Predictable Numbers or Identifiers vulnerability in Erlang/OTP kernel inetres, inetdb modules allows DNS Cache Poisoning. The built-in DNS resolver inetres uses a sequential, process-global 16-bit transaction ID for UDP queries and does not implement source port randomization...

PT-2026-30803

Name of the Vulnerable Software and Affected Versions Erlang/OTP versions 17.0 through 28.4.2, 27.3.4.10 and 26.2.5.19 Description A predictable number generation issue in the Erlang/OTP kernel's inet res and inet db modules allows for DNS cache poisoning. The built-in DNS resolver uses a...