Vulnerability in AMD Epyc™ 7003 Series Processors
CVE-2023-20591
Improper re-initialization of IOMMU during the DRTM event may permit an untrusted platform configuration to persist, allowing an attacker to read or modify hypervisor memory, potentially resulting in loss of confidentiality, integrity, and availability.
Vulnerability class: Dirty Pipe (CVE-2022-0847)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (21.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- AMD Epyc™ 7003 Series Processors — versions MilanPI 1.0.0.B
- AMD Epyc™ 9004 Series Processors — versions Genoa 1.0.0.8
- AMD Epyc™ Embedded 7003 Series Processors — versions EmbMilanPI-SP3 1.0.0.7
- AMD Epyc™ Embedded 9003 Series Processors — versions EmbGenoaPI-SP5 1.0.0.3
- AMD Epyc 7203
- AMD Epyc 7203 Firmware
- AMD Epyc 7203p
- AMD Epyc 7203p Firmware
- AMD Epyc 72f3
- AMD Epyc 72f3 Firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-20591?
- CVE-2023-20591 is a medium-severity vulnerability in AMD Epyc™ 7003 Series Processors, classified under Improper Initialization. CVSS score: 6.5/10. Published 2024-08-13.
- How severe is CVE-2023-20591?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-20591 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.