AMD confirms security vulnerability on Zen 5-based CPUs that generates potentially predictable keys — RDSEED fix coming through an AGESA firmware update for desktop chips

Tom's Hardware
Nov 3, 2025, 10:53 am289 pts
AMD has confirmed that Zen 5's RDSEED random number generator is failing, causing it to generate potentially predictable cryptography keys for attackers to exploit. Mitigations for the security flaw are launching throughout the next few months for consumer and datacenter versions of AMD's Ryzen 9000 series…

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