CVE-2025-20064
Improper Input Validation in Intel UEFI Module Enables Privilege Escalation
Publication date: 2026-03-10
Last updated on: 2026-03-10
Assigner: Intel Corporation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| intel | uefi_flashucacmsmm | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is caused by improper input validation in the UEFI FlashUcAcmSmm module on some Intel reference platforms. It may allow an escalation of privilege, meaning that a system software adversary who already has privileged user access could potentially execute local code with higher privileges. The attack is complex and requires local access, special internal knowledge, but no user interaction.
How can this vulnerability impact me? :
The vulnerability can impact the confidentiality, integrity, and availability of the affected system at a high level. This means sensitive information could be exposed or altered, and system operations could be disrupted, potentially leading to serious security breaches.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
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How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know