CVE-2026-41224
Received Received - Intake

Out-of-Bounds Write in Intel Slim Bootloader UEFI Firmware

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: Intel Corporation

Description
Out-of-bounds write in the UEFI firmware for the Intel(R) Slim Bootloader within Ring 0: Bare Metal OS may allow an escalation of privilege. Startup code and smm adversary with an unauthenticated user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via physical access when attack requirements are not 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 (high), integrity (high) and availability (high) impacts.

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Meta Information

Published
2026-11-10
Last Modified
2026-11-10
Generated
2026-11-10
AI Q&A
2026-11-10
EPSS Evaluated
N/A
NVD
CVE-2026-41224
EUVD
EUVD-2026-121657

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
intel slim_bootloader *

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This is an out-of-bounds write vulnerability in Intel's Slim Bootloader firmware running in Ring 0 (privileged bare metal OS mode). It allows an unauthenticated attacker with physical access to escalate privileges through a low-complexity attack without special internal knowledge or user interaction.

Impact Analysis

An attacker could gain high-level system access, compromising confidentiality, integrity, and availability of the system. This could lead to data theft, system manipulation, or denial of service, potentially allowing full control over the affected device.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance violations, data breach notifications, and potential regulatory penalties if systems are compromised through this flaw.

Mitigation Strategies

Update Intel Slim Bootloader firmware to the latest version provided by Intel to patch the out-of-bounds write vulnerability. Ensure physical access controls are in place to prevent unauthorized tampering with the system.

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