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TI-2021-21465 Aliases CVE-2021-46746GHSA-xqmq-3744-539p

Buffer overflow in AMD EPYC™ 7001 Processors

Priority LOW 23CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · Low · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Lack of stack protection exploit mechanisms in ASP Secure OS Trusted Execution Environment (TEE) may allow a privileged attacker with access to AMD signing keys to c006Frrupt the return address, causing a stack-based buffer overrun, potentially leading to a denial of service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00154 4th percentileScored 2026-11-07
Fix Fixed AMD Ryzen™ 3000 Series Desktop Processors (AMD): ComboAM4PI 1.0.0.9, ComboAM4 V2 PI 1.2.0.8AMD Ryzen™ 5000 Series Desktop Processors (AMD): ComboAM4V2 PI 1.2.0.8+23 more products

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AMDAMD EPYC™ 7001 Processorsvarious and later—No fix listedCNA
AMDAMD EPYC™ 7002 Processorsvarious and later—No fix listedCNA
AMDAMD EPYC™ 7003 Processorsvarious and later—No fix listedCNA
AMDAMD EPYC™ 9004 Processorsvarious and later—No fix listedCNA
AMDAMD Ryzen™ 3000 Series Desktop Processors—ComboAM4PI 1.0.0.9, ComboAM4 V2 PI 1.2.0.8Patch availableCNA
AMDAMD Ryzen™ 5000 Series Desktop Processors—ComboAM4V2 PI 1.2.0.8Patch availableCNA
AMDAMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics—ComboAM4v2 PI 1.2.0.5Patch availableCNA
AMDAMD Ryzen™ 7000 Series Desktop ProcessorsComboAM5 1.0.8.0 and later—No fix listedCNA
AMDAMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics—ComboAM4PI 1.0.0.9, ComboAM4v2 PI 1.2.0.8Patch availableCNA
AMDAMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics—ComboAM4v2 PI 1.2.0.5Patch availableCNA
AMDAMD Ryzen™ Threadripper™ 3000 Series Processors—CastlePeakPI-SP3r3 1.0.0.7Patch availableCNA
AMDAMD Ryzen™ Threadripper™ PRO 3000WX Series Processors—ChagallWSPI-sWRX8 1.0.0.2, CastlePeakWSPI-sWRX8 1.0.0.9Patch availableCNA
AMDAMD Ryzen™ Threadripper™ PRO 5000WX Processors—ChagallWSPI-sWRX8 1.0.0.2Patch availableCNA
AMDAMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics—PicassoPI-FP5 1.0.0.EPatch availableCNA
AMDAMD Athlon™ 3000 Series Mobile Processors with Radeon™ GraphicsPollockPI-FT5 1.0.0.4 and later—No fix listedCNA
AMDAMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics—PicassoPI-FP5 1.0.0.EPatch availableCNA
AMDAMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics—RenoirPI-FP6 1.0.0.8Patch availableCNA
AMDAMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics—CezannePI-FP6 1.0.0.8Patch availableCNA
AMDAMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics—CezannePI-FP6 1.0.0.8Patch availableCNA
AMDAMD Ryzen™ 7020 Series Processors with Radeon™ Graphics—MendocinoPI-FT6 1.0.0.6Patch availableCNA
AMDAMD Ryzen™ 6000 Series Processors with Radeon™ Graphics—RembrandtPI-FP7 1.0.0.5Patch availableCNA
AMDAMD Ryzen™ 7035 Series Processors with Radeon™ Graphics—RembrandtPI-FP7 1.0.0.5Patch availableCNA
AMDAMD Ryzen™ 5000 Series Processors with Radeon™ Graphics—CezannePI-FP6 1.0.0.8Patch availableCNA
AMDAMD Ryzen™ 3000 Series Processors with Radeon™ Graphics—CezannePI-FP6 1.0.0.8Patch availableCNA
AMDAMD Ryzen™ 7045 Series Mobile Processors—DragonRangeFL1PI 1.0.0.3bPatch availableCNA
AMDAMD EPYC™ Embedded 3000 Series Processorsvarious and later—No fix listedCNA
AMDAMD EPYC™ Embedded 7002 Series Processorsvarious and later—No fix listedCNA
AMDAMD EPYC™ Embedded 7003 Series Processorsvarious and later—No fix listedCNA
AMDAMD EPYC™ Embedded 9003 Series Processorsvarious and later—No fix listedCNA
AMDAMD Ryzen™ Embedded R1000 Series Processors—EmbeddedPI-FP5 1.2.0.APatch availableCNA
AMDAMD Ryzen™ Embedded R2000 Series Processors—EmbeddedR2KPI-FP5 1.0.0.2Patch availableCNA
AMDAMD Ryzen™ Embedded 5000 Series Processors—EmbAM4PI 1.0.0.2Patch availableCNA
AMDAMD Ryzen™ Embedded 7000 Series Processors—EmbeddedAM5PI 1.0.0.0Patch availableCNA
AMDAMD Ryzen™ Embedded V1000 Series Processors—EmbeddedPI-FP5 1.2.0.APatch availableCNA
AMDAMD Ryzen™ Embedded V2000 Series Processors—EmbeddedPI-FP6 1.0.0.6Patch availableCNA
AMDAMD Ryzen™ Embedded V3000 Series Processors—EmbeddedPI-FP7r2 1.0.0.2Patch availableCNA
  • AMD EPYC™ 7001 Processors VendorAMD Affected various and later Fixed in — No fix listed CNA
  • AMD EPYC™ 7002 Processors VendorAMD Affected various and later Fixed in — No fix listed CNA
  • AMD EPYC™ 7003 Processors VendorAMD Affected various and later Fixed in — No fix listed CNA
  • AMD EPYC™ 9004 Processors VendorAMD Affected various and later Fixed in — No fix listed CNA
  • AMD Ryzen™ 3000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM4PI 1.0.0.9, ComboAM4 V2 PI 1.2.0.8 Patch available CNA
  • AMD Ryzen™ 5000 Series Desktop Processors VendorAMD Affected — Fixed in ComboAM4V2 PI 1.2.0.8 Patch available CNA
  • AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4v2 PI 1.2.0.5 Patch available CNA
  • AMD Ryzen™ 7000 Series Desktop Processors VendorAMD Affected ComboAM5 1.0.8.0 and later Fixed in — No fix listed CNA
  • AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4PI 1.0.0.9, ComboAM4v2 PI 1.2.0.8 Patch available CNA
  • AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics VendorAMD Affected — Fixed in ComboAM4v2 PI 1.2.0.5 Patch available CNA
  • AMD Ryzen™ Threadripper™ 3000 Series Processors VendorAMD Affected — Fixed in CastlePeakPI-SP3r3 1.0.0.7 Patch available CNA
  • AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors VendorAMD Affected — Fixed in ChagallWSPI-sWRX8 1.0.0.2, CastlePeakWSPI-sWRX8 1.0.0.9 Patch available CNA
  • AMD Ryzen™ Threadripper™ PRO 5000WX Processors VendorAMD Affected — Fixed in ChagallWSPI-sWRX8 1.0.0.2 Patch available CNA
  • AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in PicassoPI-FP5 1.0.0.E Patch available CNA
  • AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected PollockPI-FT5 1.0.0.4 and later Fixed in — No fix listed CNA
  • AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics VendorAMD Affected — Fixed in PicassoPI-FP5 1.0.0.E Patch available CNA
  • AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RenoirPI-FP6 1.0.0.8 Patch available CNA
  • AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.8 Patch available CNA
  • AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.8 Patch available CNA
  • AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in MendocinoPI-FT6 1.0.0.6 Patch available CNA
  • AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RembrandtPI-FP7 1.0.0.5 Patch available CNA
  • AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in RembrandtPI-FP7 1.0.0.5 Patch available CNA
  • AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.8 Patch available CNA
  • AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics VendorAMD Affected — Fixed in CezannePI-FP6 1.0.0.8 Patch available CNA
  • AMD Ryzen™ 7045 Series Mobile Processors VendorAMD Affected — Fixed in DragonRangeFL1PI 1.0.0.3b Patch available CNA
  • AMD EPYC™ Embedded 3000 Series Processors VendorAMD Affected various and later Fixed in — No fix listed CNA
  • AMD EPYC™ Embedded 7002 Series Processors VendorAMD Affected various and later Fixed in — No fix listed CNA
  • AMD EPYC™ Embedded 7003 Series Processors VendorAMD Affected various and later Fixed in — No fix listed CNA
  • AMD EPYC™ Embedded 9003 Series Processors VendorAMD Affected various and later Fixed in — No fix listed CNA
  • AMD Ryzen™ Embedded R1000 Series Processors VendorAMD Affected — Fixed in EmbeddedPI-FP5 1.2.0.A Patch available CNA
  • AMD Ryzen™ Embedded R2000 Series Processors VendorAMD Affected — Fixed in EmbeddedR2KPI-FP5 1.0.0.2 Patch available CNA
  • AMD Ryzen™ Embedded 5000 Series Processors VendorAMD Affected — Fixed in EmbAM4PI 1.0.0.2 Patch available CNA
  • AMD Ryzen™ Embedded 7000 Series Processors VendorAMD Affected — Fixed in EmbeddedAM5PI 1.0.0.0 Patch available CNA
  • AMD Ryzen™ Embedded V1000 Series Processors VendorAMD Affected — Fixed in EmbeddedPI-FP5 1.2.0.A Patch available CNA
  • AMD Ryzen™ Embedded V2000 Series Processors VendorAMD Affected — Fixed in EmbeddedPI-FP6 1.0.0.6 Patch available CNA
  • AMD Ryzen™ Embedded V3000 Series Processors VendorAMD Affected — Fixed in EmbeddedPI-FP7r2 1.0.0.2 Patch available CNA

Remediation

  • Fix · CNA AMD Ryzen™ 3000 Series Desktop Processors (AMD) Fixed in ComboAM4PI 1.0.0.9, ComboAM4 V2 PI 1.2.0.8
  • Fix · CNA AMD Ryzen™ 5000 Series Desktop Processors (AMD) Fixed in ComboAM4V2 PI 1.2.0.8
  • Fix · CNA AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics (AMD) Fixed in ComboAM4v2 PI 1.2.0.5
  • Fix · CNA AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics (AMD) Fixed in ComboAM4PI 1.0.0.9, ComboAM4v2 PI 1.2.0.8
  • Fix · CNA AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics (AMD) Fixed in ComboAM4v2 PI 1.2.0.5
  • Fix · CNA AMD Ryzen™ Threadripper™ 3000 Series Processors (AMD) Fixed in CastlePeakPI-SP3r3 1.0.0.7
  • Fix · CNA AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors (AMD) Fixed in ChagallWSPI-sWRX8 1.0.0.2, CastlePeakWSPI-sWRX8 1.0.0.9
  • Fix · CNA AMD Ryzen™ Threadripper™ PRO 5000WX Processors (AMD) Fixed in ChagallWSPI-sWRX8 1.0.0.2
  • Fix · CNA AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in PicassoPI-FP5 1.0.0.E
  • Fix · CNA AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics (AMD) Fixed in PicassoPI-FP5 1.0.0.E
  • Fix · CNA AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in RenoirPI-FP6 1.0.0.8
  • Fix · CNA AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.8
  • Fix · CNA AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.8
  • Fix · CNA AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics (AMD) Fixed in MendocinoPI-FT6 1.0.0.6
  • Fix · CNA AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics (AMD) Fixed in RembrandtPI-FP7 1.0.0.5
  • Fix · CNA AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics (AMD) Fixed in RembrandtPI-FP7 1.0.0.5
  • Fix · CNA AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.8
  • Fix · CNA AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics (AMD) Fixed in CezannePI-FP6 1.0.0.8
  • Fix · CNA AMD Ryzen™ 7045 Series Mobile Processors (AMD) Fixed in DragonRangeFL1PI 1.0.0.3b
  • Fix · CNA AMD Ryzen™ Embedded R1000 Series Processors (AMD) Fixed in EmbeddedPI-FP5 1.2.0.A
  • Fix · CNA AMD Ryzen™ Embedded R2000 Series Processors (AMD) Fixed in EmbeddedR2KPI-FP5 1.0.0.2
  • Fix · CNA AMD Ryzen™ Embedded 5000 Series Processors (AMD) Fixed in EmbAM4PI 1.0.0.2
  • Fix · CNA AMD Ryzen™ Embedded 7000 Series Processors (AMD) Fixed in EmbeddedAM5PI 1.0.0.0
  • Fix · CNA AMD Ryzen™ Embedded V1000 Series Processors (AMD) Fixed in EmbeddedPI-FP5 1.2.0.A
  • Fix · CNA AMD Ryzen™ Embedded V2000 Series Processors (AMD) Fixed in EmbeddedPI-FP6 1.0.0.6
  • Fix · CNA AMD Ryzen™ Embedded V3000 Series Processors (AMD) Fixed in EmbeddedPI-FP7r2 1.0.0.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics and 31 more products — amd.com/en/resources/product-security/bulletin/amd-sb-3003.…

    10 records Highest priority Priority MEDIUM 1 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2023-07040 Improper re-initialization of IOMMU during the DRTM event may permit an untrusted…Priority MEDIUM 49
    • TI-2021-08171 Out-of-bounds write in AMD EPYC™ 7001 Series ProcessorsPriority LOW 37
    • TI-2023-07029 Time-of-check time-of-use race condition in AMD EPYC™ 7001 ProcessorsPriority LOW 34

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-46746
  2. 2026-10-03 Alias added: GHSA-xqmq-3744-539p

References

  • TI-2026-36341 AI Tensor Engine for ROCm (AITER) 0.1.14 Unauthenticated RCE via MessageQueue.recv() Pickle Deserialization CVSS 4.0CRITICAL 9.2
  • TI-2023-07046 Improper privilege management in AMD Radeon™ RX 5000 Series Graphics Cards CVSS 3.1HIGH 7.8
  • TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
  • TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
  • TI-2023-23747 PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers… CVSS 3.1MEDIUM 5.3
  • TI-2022-07839 Improper access control in System Management Mode (SMM) may allow an attacker to write to… CVSS 3.1CRITICAL 9.8
See all 508 →

Sources