Vulnerability in AMD Epyc™ 7003 Series Processors
CVE-2025-52536
Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.
Published · last modified .
EPSS exploit prediction
EPSS: 0.002 (4.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- AMD Epyc™ 7003 Series Processors — versions MilanPI 1.0.0.H
- AMD Epyc™ 8004 Series Processors — versions GenoaPI 1.0.0.G
- AMD Epyc™ 9004 Series Processors — versions GenoaPI 1.0.0.G
- AMD Epyc™ 9005 Series Processors — versions TurinPI 1.0.0.5
- AMD Epyc™ Embedded 7003 Series Processors — versions EmbMilanPI-SP3 v9 1.0.0.C
- AMD Epyc™ Embedded 8004 Series Processors — versions EmbGenoaPI-SP5 1.0.0.B
- AMD Epyc™ Embedded 9004 Series Processors (Formerly Codenamed "Bergamo") — versions EmbGenoaPI-SP5 1.0.0.B
- AMD Epyc™ Embedded 9004 Series Processors (Formerly Codenamed "Genoa") — versions EmbGenoaPI-SP5 1.0.0.B
- AMD Epyc™ Embedded 9005 Series Processors — versions EmbTurinPI-SP5_1.0.0.1