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Status published
Low
CVE-2021-26387
Insufficient access controls in ASP kernel may allow a privileged attacker...
Vulnerability Description
Insufficient access controls in ASP kernel may allow a privileged attacker with access to AMD signing keys and the BIOS menu or UEFI shell to map DRAM regions in protected areas, potentially leading to a loss of platform integrity.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Affected Software
AMD EPYC™ 7001 Series Processors, AMD EPYC™ 7002 Series Processors, AMD EPYC™ 7003 Series Processors, AMD EPYC™ 9004 Series Processors, AMD Ryzen™ 3000 Series Desktop Processors, AMD Ryzen™ 5000 Series Desktop Processors, AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics, AMD Ryzen™ 7000 Series Desktop Processors, AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics, AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics, AMD Ryzen™ Threadripper™ 3000 Series Processors, AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors, AMD Ryzen™ Threadripper™ PRO 5000WX Processors, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics, AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics, AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics, AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics, AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics, AMD EPYC™ Embedded 3000 Series Processors, AMD EPYC™ Embedded 7002 Series Processors, AMD EPYC™ Embedded 7003 Series Processors, AMD EPYC™ Embedded 9003 Series Processors, AMD Ryzen™ Embedded R1000 Series Processors, AMD Ryzen™ Embedded R2000 Series Processors, AMD Ryzen™ Embedded 5000 Series Processors, AMD Ryzen™ Embedded V1000 Series Processors, AMD Ryzen™ Embedded V2000 Series Processors, AMD Ryzen™ Embedded V3000 Series Processors
Vulnerable Versions:
various, ComboAM4PI 1.0.0.9, ComboAM4 V2 PI 1.2.0.8, ComboAM4v2 PI 1.2.0.6, ComboAM5 1.0.8.0, ComboAM4v2 PI 1.2.0.8, ComboAM4v2 PI 1.2.0.5, CastlePeakPI-SP3r3 1.0.0.7, ChagallWSPI-sWRX8 1.0.0.2, CastlePeakWSPI-sWRX8 1.0.0.9, PicassoPI-FP5 1.0.0.E, PollockPI-FT5 1.0.0.4, RenoirPI-FP6 1.0.0.8, CezannePI-FP6 1.0.0.9, CezannePI-FP6 1.0.0.9, RembrandtPI-FP7 1.0.0.9b, EmbeddedPI-FP5 1.2.0.A, EmbeddedR2KPI-FP5 1.0.0.2, EmbAM4PI 1.0.0.2, EmbeddedPI-FP6 1.0.0.6, EmbeddedPI-FP7r2 1.0.0.9
Timeline
Official Publish:
August 13th, 2024
Last Modified:
October 30th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.