AMD “Zen 5” Processors – RDSEED Failure

AMD has informed HP of a potential security vulnerability in some AMD “Zen 5” Processors, which might allow loss of confidentiality and integrity. AMD is releasing firmware updates to mitigate these vulnerabilities AMD has released updates to mitigate the potential vulnerability. HP has identifie...

USN-8152-1: Linux kernel (OEM) vulnerabilities

It was discovered that some AMD Zen 5 processors supporting RDSEED instruction did not properly handle entropy, potentially resulting in the consumption of insufficiently random values. A local attacker could possibly use this issue to influence the values returned by the RDSEED instruction causi...

CVE-2025-62626

Improper handling of insufficient entropy in the AMD CPUs could allow a local attacker to influence the values returned by the RDSEED instruction, potentially resulting in the consumption of insufficiently random values...

RDSEED Failure on AMD Zen 5 Processors - Lenovo Support US

No description provided...

RDSEED Failure on AMD Zen 5 Processors - Lenovo Support US

No description provided...

RDSEED Failure on AMD “Zen 5” Processors

Summary AMD was notified of a bug in “Zen 5” processors that may cause the RDSEED instruction to return 0 at a rate inconsistent with randomness while incorrectly signaling success CF=1, indicating a potential misclassification of failure as success. This issue was initially reported publicly via...