Escalation of Privilege Vulnerability in Intel UEFI Firmware
CVE-2025-20005

5.6MEDIUM

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 Data Manipulation. This Result May Potentially Occur Via Local Access When Attack Requirements Are Not Present Without Special Internal Knowledge And Requires No User Interaction. The Potential Vulnerability May Impact The Confidentiality (none), Integrity (high) And Availability (low) 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-2025-20005?

An improper buffer restriction issue in certain UEFI firmware for Intel reference platforms can lead to potential escalation of privilege attacks. This vulnerability enables a privileged user, leveraging a complex attack vector, to manipulate data. While local access is necessary, the attack can be carried out without specialized internal knowledge and does not require user interaction. The implications of this vulnerability may extend to the integrity of the affected system, posing risks despite no immediate impact on confidentiality and availability.

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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 data manipulation. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (high) and availability (low) 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:
5.6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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