CVE-2025-48517
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Access Control Bypass in AMD SEV Firmware Risks Confidentiality
Vulnerability report for CVE-2025-48517, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-02-10
Last updated on: 2026-02-10
Assigner: Advanced Micro Devices Inc.
Description
Description
Insufficient Granularity of Access Control in SEV firmware could allow a privileged user with a malicious hypervisor to create a SEV-ES guest with an ASID in the range meant for SEV-SNP guests potentially resulting in a partial loss of confidentiality.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| amd | sev_firmware | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-1220 | The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets. |
