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CVE-2026-31724

5.5 · MEDIUM
Published May 1, 2026 linux EPSS 0.12% (2th pctl)

Overview

CVE-2026-31724 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 1, 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: gadget: f_eem: Fix net_device lifecycle with device_move

The net_device is allocated during function instance creation and

registered during the bind phase with the gadget device as its sysfs

parent. When the function unbinds, the parent device is destroyed, but

the net_device survives, resulting in dangling sysfs symlinks:

console:/ # ls -l /sys/class/net/usb0

lrwxrwxrwx ... /sys/class/net/usb0 ->

/sys/devices/platform/.../gadget.0/net/usb0

console:/ # ls -l /sys/devices/platform/.../gadget.0/net/usb0

ls: .../gadget.0/net/usb0: No such file or directory

Use device_move() to reparent the net_device between the gadget device

tree and /sys/devices/virtual across bind and unbind cycles. During the

final unbind, calling device_move(NULL) moves the net_device to the

virtual device tree before the gadget device is destroyed. On rebinding,

device_move() reparents the device back under the new gadget, ensuring

proper

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 3.11.1, < 6.12.81 Affected

Frequently Asked Questions

What is CVE-2026-31724?

CVE-2026-31724 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 1, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-31724?

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-2026-31724?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2026-31724?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-31724 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.