Vulnerability in AMD 1st Gen Epyc™ Processors
CVE-2021-46774
Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:L.
EPSS exploit prediction
EPSS: 0.005 (42.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- AMD 1st Gen Epyc™ Processors — versions various
- AMD 2nd Gen Epyc™ Processors — versions various
- AMD 3rd Gen Epyc™ Processors — versions various
- AMD 4th Gen Epyc™ Processors — versions various
- AMD Epyc™ Embedded 3000 — versions various
- AMD Epyc™ Embedded 7002 — versions various
- AMD Epyc™ Embedded 7003 — versions various
- AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” — versions various
- AMD Ryzen™ Embedded 5000 — versions various
- AMD Ryzen™ Threadripper™ 3000 Series Processors “Castle Peak” Hedt — versions various
References
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002 (vendor-advisory, Vendor Advisory)
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002 (vendor-advisory, Vendor Advisory)
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001 (vendor-advisory)
Frequently asked questions
- What is CVE-2021-46774?
- CVE-2021-46774 is a medium-severity vulnerability in AMD 1st Gen Epyc™ Processors. CVSS score: 6.7/10. Published 2023-11-14.
- How severe is CVE-2021-46774?
- Medium severity. CVSS v3 base score is 6.7 out of 10.