Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2025-38111

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net/mdiobus: Fix potential out-of-bounds read/write access When using publicly available tools like 'mdio-tools' to read/write…

Published Jul 3, 2025CWE-125EPSS 0.22%

Overview

CVE-2025-38111 is a high-severity vulnerability. It was published on July 3, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

net/mdiobus: Fix potential out-of-bounds read/write access

When using publicly available tools like 'mdio-tools' to read/write data

from/to network interface and its PHY via mdiobus, there is no verification of

parameters passed to the ioctl and it accepts any mdio address.

Currently there is support for 32 addresses in kernel via PHY_MAX_ADDR define,

but it is possible to pass higher value than that via ioctl.

While read/write operation should generally fail in this case,

mdiobus provides stats array, where wrong address may allow out-of-bounds

read/write.

Fix that by adding address verification before read/write operation.

While this excludes this access from any statistics, it improves security of

read/write operation.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/014ad9210373d2104f6ef10e6bb999a7a0a4c50eRefgit.kernel.org/stable/c/049af7ac45a6b407748ee0995278fd861e36df8fRefgit.kernel.org/stable/c/0e629694126ca388916f059453a1c36adde219c4Refgit.kernel.org/stable/c/19c5875e26c4ed5686d82a7d8f7051385461b9ebRefgit.kernel.org/stable/c/73d478234a619f3476028cb02dee699c30ae8262Refgit.kernel.org/stable/c/b02d9d2732483e670bc34cb233d28e1d43b15da4Refgit.kernel.org/stable/c/bab6bca0834cbb5be2a7cfe59ec6ad016ec72608Reflists.debian.org/debian-lts-announce/2025/10/msg00007.htmlReflists.debian.org/debian-lts-announce/2025/10/msg00008.htmlRefcert-portal.siemens.com/productcert/html/ssa-082556.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38111?

CVE-2025-38111 is a high-severity vulnerability. It was published on July 3, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38111?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-38111?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-38111?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38111 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2025

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999