CVE-2024-21977 (GCVE-0-2024-21977)

Vulnerability from cvelistv5 – Published: 2025-09-05 12:58 – Updated: 2025-09-05 13:35
VLAI
Summary
Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.
Severity
3.2 (Low)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N
CWE
Assigner
AMD
References
Impacted products
Vendor Product Version
AMD AMD EPYC™ 7003 Series Processors Unaffected: MilanPI 1.0.0.D
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AMD AMD EPYC™ 9004 Series Processors Unaffected: GenoaPI 1.0.0.C
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AMD AMD EPYC™ 8004 Series Processors Unaffected: GenoaPI 1.0.0.C
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AMD AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors Unaffected: ChagallWSPI-sWRX8 1.0.0.8
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AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics Unaffected: CezannePI-FP6_1.0.1.1
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AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics Unaffected: RembrandtPI-FP7/FP7r2_1.0.0.B
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AMD AMD Ryzen™ 5000 Series Desktop Processors Unaffected: ComboAM4v2 1.2.0.Cb
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AMD AMD Ryzen™ 7000 Series Desktop Processors Unaffected: ComboAM5 1.2.0.1
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AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics Unaffected: PhoenixPI-FP8-FP7_1.1.0.3
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AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics Unaffected: RembrandtPI-FP7/FP7r2_1.0.0.B
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AMD AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics Unaffected: DragonRangeFL1 1.0.0.3e
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AMD AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors Unaffected: ChagallWSPI-sWRX8 1.0.0.8
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AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics Unaffected: CezannePI-FP6_1.0.1.1
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AMD AMD Ryzen™ 8000 Series Desktop Processors Unaffected: ComboAM5 1.2.0.1
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AMD AMD EPYC™ Embedded 7003 Series Processors Unaffected: EmbMilanPI-SP3 1.0.0.9
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AMD AMD EPYC™ Embedded 9004 Series Processors Unaffected: EmbGenoaPI-SP5 1.0.0.9
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AMD AMD Ryzen™ Embedded 8000 Series Processors Unaffected: EmbeddedPhoenixPI-FP7r2_1.2.0.0
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AMD AMD Ryzen™ Embedded 7000 Series Processors Unaffected: EmbeddedAM5PI 1.0.0.3
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AMD AMD Ryzen™ Embedded 5000 Series Processors Unaffected: EmbAM4PI 1.0.0.7
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AMD AMD Ryzen™ Embedded V3000 Series Processors Unaffected: Embedded-PI_FP7r2 100A
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Date Public
2025-09-05 12:37
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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