Input Validation Flaw in UEFI ImcErrorHandler on Intel Platforms
CVE-2025-20068

7.1HIGH

Key Information:

Vendor

Intel
Status
Intel(r) Reference Platforms May Allow An Escalation Of Privilege. System Software Adversary With A Privileged User Combined With A High Complexity Attack May Enable Escalation Of Privilege. This Result May Potentially Occur Via Local Access When Attack Requirements Are Present Without Special Internal Knowledge And Requires No User Interaction. The Potential Vulnerability May Impact The Confidentiality (high), Integrity (high) And Availability (high) Of The Vulnerable System, Resulting In Subsequent System Confidentiality (none), Integrity (none) And Availability (none) Impacts.
Vendor
CVE Published:
10 March 2026

What is CVE-2025-20068?

An improper input validation vulnerability exists in the UEFI ImcErrorHandler module found in certain Intel reference platforms. This flaw allows a system software adversary with a privileged user access to potentially escalate privileges through a high complexity attack that requires local access. Notably, this attack vector does not necessitate special internal knowledge or user interaction. The consequences of exploiting this vulnerability may affect the confidentiality, integrity, and availability of the system, leading to significant system security risks.

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Affected Version(s)

Intel(R) reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts. See references

References

https://intel.com/content/www/us/en/security-center/advis...

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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