CWE-333: Improper Handling of Insufficient Entropy in TRNG

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True random number generators (TRNG) generally have a limited source of entropy and therefore can fail or block.

What the weakness is: CWE-333 at MITRE. All weaknesses

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Explain CWE-333: Improper Handling of Insufficient Entropy in TRNG and how to prevent and detect it in code. Use https://cwe.mitre.org/data/definitions/333.html and https://cve.bz/cve/cwe/333?via=ask-ai-copy for recent CVEs with this weakness. Cite the sources.

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7.2CVE-2025-62626EPSS 0.2%2025-11-21
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.