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CVE-2026-46109

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: usb: ulpi: fix memory leak on ulpi_register() error paths Commit 01af542392b5 ("usb: ulpi: fix double free in ulpi_register_int…

Published May 28, 2026CWE-401EPSS 0.16%

Overview

CVE-2026-46109 is a medium-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

usb: ulpi: fix memory leak on ulpi_register() error paths

Commit 01af542392b5 ("usb: ulpi: fix double free in

ulpi_register_interface() error path") removed kfree(ulpi) from

ulpi_register_interface() to fix a double-free when device_register()

fails.

But when ulpi_of_register() or ulpi_read_id() fail before

device_register() is called, the ulpi allocation is leaked.

Add kfree(ulpi) on both error paths to properly clean up the allocation.

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/0b9fcab1b8608d429e5f239afb197de928d4de7dRefgit.kernel.org/stable/c/0c2c0c6820fe96fa4be0a0499f8d3f3321b9af6cRefgit.kernel.org/stable/c/2a71e01b2cf9b4329ff67102c1bea7448c2a2d2dRefgit.kernel.org/stable/c/7bd61ed0bf9f4f1f2673d489b3bda1555b48d054Refgit.kernel.org/stable/c/b0c0d44adb55c66663886cb6e30ee92cbb0f5385Refgit.kernel.org/stable/c/be2c1d825f54277472c87019e82013ac534ddc4cRefgit.kernel.org/stable/c/f1b855c00988a9cb41134cab7cf9faedba775dd9Refgit.kernel.org/stable/c/f30ccfc2985590b33a23a3d8bed7ca16c0af551b

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46109?

CVE-2026-46109 is a medium-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-46109?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-46109?

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-2026-46109?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46109 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.

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