Improper input validation in AMD EPYC™ 7003 Series Processors
Priority LOW 23CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a system with a non-compliant DIMM, or control over the Root of Trust for BIOS update, to potentially overwrite guest memory resulting in loss of guest data integrity.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00222 12th percentileScored 2026-11-07
Fix Fixed AMD EPYC™ 7003 Series Processors (AMD): Milan PI 1.0.0.D, SEV FW 1.55.22 (hex 1.37.16)AMD EPYC™ 9004 Series Processor (AMD): Genoa PI 1.0.0.D, SEV FW 1.55.38 (hex 1.37.26)
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
Remediation
- Fix · CNA AMD EPYC™ 7003 Series Processors (AMD) Fixed in Milan PI 1.0.0.D, SEV FW 1.55.22 (hex 1.37.16)
- Fix · CNA AMD EPYC™ 9004 Series Processor (AMD) Fixed in Genoa PI 1.0.0.D, SEV FW 1.55.38 (hex 1.37.26)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-21944
- 2026-10-03 Alias added: GHSA-4c4q-g449-2566
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-2024-21944 · CVE Program
- CVE-2024-21944 · NVD
- FIRST EPSS
- GHSA-4c4q-g449-2566 · GitHub Advisory Database · CC BY 4.0
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