CVE-2025-27535
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Insufficient Access Control in Intel E825-C Firmware Causes DoS

Publication date: 2026-02-10

Last updated on: 2026-03-17

Assigner: Intel Corporation

Description
Exposed ioctl with insufficient access control in the firmware for some Intel(R) Ethernet Connection E825-C. before version NVM ver. 3.84 within Ring 0: Bare Metal OS may allow a denial of service. System software adversary with a privileged user combined with a high complexity attack may enable denial of service. 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 (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
2026-02-10
Last Modified
2026-03-17
Generated
2026-07-06
AI Q&A
2026-02-10
EPSS Evaluated
2026-07-05
NVD
CVE-2025-27535
EUVD
EUVD-2025-207269

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
intel ethernet_controller to 30.3 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-782 The product implements an IOCTL with functionality that should be restricted, but it does not properly enforce access control for the IOCTL.

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Executive Summary

This vulnerability involves an exposed ioctl interface in the firmware of some Intel(R) Ethernet Connection E825-C devices before version NVM 3.84. The ioctl has insufficient access control, which means that a system software adversary with privileged user access and the ability to perform a complex attack could cause a denial of service (DoS) condition. The attack requires local access, does not need special internal knowledge, and does not require user interaction.

Impact Analysis

The primary impact of this vulnerability is a denial of service (DoS) on the affected system, which affects the availability of the system. There are no impacts on confidentiality or integrity. This means that the system could become unavailable or unresponsive due to the exploit, potentially disrupting operations that rely on the affected Intel Ethernet hardware.

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