Advanced Micro Devices (AMD) has officially disclosed a high-severity security vulnerability in its latest Zen 5 processors. The flaw, tracked as CVE-2025-62626, affects the RDSEED instruction, which is critical for generating high-quality random numbers used in cryptographic operations. The issue can cause the instruction to fail while incorrectly signaling that it was successful, potentially compromising system security by providing insufficiently random values to applications. The vulnerability impacts the integrity of security features that rely on hardware-based random number generation. While AMD has reported the failure, the immediate market reaction was not detailed in the available reports. The disclosure comes as the market shows significant interest in AMD's upcoming Q3 earnings report, with analysts closely watching the performance of the company's data center and AI-related products.