CVE-2025-20027
Improper Input Validation in Intel UEFI WheaERST 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_wheaerst | * |
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
What immediate steps should I take to mitigate this vulnerability?
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How can this vulnerability be detected on my network or system? Can you suggest some commands?
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Can you explain this vulnerability to me?
This vulnerability involves improper input validation in the UEFI WheaERST module on certain Intel reference platforms. It may allow a system software adversary who already has privileged user access, combined with a high complexity attack, to escalate their privileges further. The attack can potentially be executed locally without requiring special internal knowledge or user interaction.
How can this vulnerability impact me? :
The vulnerability can impact the confidentiality, integrity, and availability of the vulnerable system at a high level. This means an attacker could potentially gain unauthorized access, alter system data or operations, and disrupt system functionality.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
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