Improper input validation in IOMMU could allow a malicious hypervisor to reconfigure…
Priority LOW 26CWE-1284Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Improper input validation in IOMMU could allow a malicious hypervisor to reconfigure IOMMU registers resulting in loss of guest data integrity.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00188 8th percentileScored 2026-11-07
Fix Fixed AMD EPYC™ 9004 Series Processors (AMD): GenoaPI 1.0.0.FAMD EPYC™ 8004 Series Processors (AMD): GenoaPI 1.0.0.F+1 more product
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AMD | AMD EPYC™ 9004 Series Processors | — | GenoaPI 1.0.0.F | Patch available | CNA |
| AMD | AMD EPYC™ 8004 Series Processors | — | GenoaPI 1.0.0.F | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 9004 Series Processors | — | EmbGenoaPI-SP5 1.0.0.B | Patch available | CNA |
- AMD EPYC™ 9004 Series Processors VendorAMD Affected — Fixed in GenoaPI 1.0.0.F Patch available CNA
- AMD EPYC™ 8004 Series Processors VendorAMD Affected — Fixed in GenoaPI 1.0.0.F Patch available CNA
- AMD EPYC™ Embedded 9004 Series Processors VendorAMD Affected — Fixed in EmbGenoaPI-SP5 1.0.0.B Patch available CNA
Remediation
- Fix · CNA AMD EPYC™ 9004 Series Processors (AMD) Fixed in GenoaPI 1.0.0.F
- Fix · CNA AMD EPYC™ 8004 Series Processors (AMD) Fixed in GenoaPI 1.0.0.F
- Fix · CNA AMD EPYC™ Embedded 9004 Series Processors (AMD) Fixed in EmbGenoaPI-SP5 1.0.0.B
Timeline
- 2026-10-02 Threatist record created from CVE-2024-21953
- 2026-10-03 Alias added: GHSA-846p-qcjx-5365
References
More AMD vulnerabilities
- 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
Sources
- CVE-2024-21953 · CVE Program
- CVE-2024-21953 · NVD
- FIRST EPSS
- GHSA-846p-qcjx-5365 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences