CVE-2026-28746
Received Received - Intake

AuthenticateComponent Out-of-Bounds Read in Intel(R) Slim Bootloader

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: Intel Corporation

Description
Out-of-bounds read in the AuthenticateComponent for the Intel(R) Slim Bootloader within Ring 0: Bare Metal OS may allow a denial of service. System software adversary with a privileged user combined with a low complexity attack may enable denial of service. 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 (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) 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-2026-28746
EUVD
EUVD-2026-121642

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This is an out-of-bounds read vulnerability in the AuthenticateComponent of the Intel(R) Slim Bootloader running in Ring 0 (Bare Metal OS). It allows a denial of service attack by a privileged local user with low complexity. The attack requires no special internal knowledge or user interaction and can impact system availability.

Impact Analysis

The vulnerability may cause a denial of service, leading to system unavailability. Since it affects Ring 0 components, it could potentially crash or destabilize the entire system, requiring a reboot or recovery process.

Mitigation Strategies

Apply the latest security updates or patches provided by Intel for the Intel Slim Bootloader. Ensure the AuthenticateComponent is updated to a version that addresses the out-of-bounds read issue. Monitor Intel's security advisories for further guidance.

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