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CVE-2025-21928

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() The system can experience a random crash a few minutes after…

Published Apr 1, 2025CWE-416EPSS 0.23%

Overview

CVE-2025-21928 is a high-severity vulnerability. It was published on April 1, 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:

HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove()

The system can experience a random crash a few minutes after the driver is

removed. This issue occurs due to improper handling of memory freeing in

the ishtp_hid_remove() function.

The function currently frees the `driver_data` directly within the loop

that destroys the HID devices, which can lead to accessing freed memory.

Specifically, `hid_destroy_device()` uses `driver_data` when it calls

`hid_ishtp_set_feature()` to power off the sensor, so freeing

`driver_data` beforehand can result in accessing invalid memory.

This patch resolves the issue by storing the `driver_data` in a temporary

variable before calling `hid_destroy_device()`, and then freeing the

`driver_data` after the device is destroyed.

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/01b18a330cda61cc21423a7d1af92cf31ded8f60Refgit.kernel.org/stable/c/07583a0010696a17fb0942e0b499a62785c5fc9fRefgit.kernel.org/stable/c/0c1fb475ef999d6c22fc3f963fdf20cb3ed1b03dRefgit.kernel.org/stable/c/560f4d1299342504a6ab8a47f575b5e6b8345adaRefgit.kernel.org/stable/c/cf1a6015d2f6b1f0afaa0fd6a0124ff2c7943394Refgit.kernel.org/stable/c/d3faae7f42181865c799d88c5054176f38ae4625Refgit.kernel.org/stable/c/dea6a349bcaf243fff95dfd0428a26be6a0fb44eRefgit.kernel.org/stable/c/eb0695d87a81e7c1f0509b7d8ee7c65fbc26aec9Reflists.debian.org/debian-lts-announce/2025/05/msg00030.htmlReflists.debian.org/debian-lts-announce/2025/05/msg00045.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-21928?

CVE-2025-21928 is a high-severity vulnerability. It was published on April 1, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-21928?

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-2025-21928?

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-2025-21928?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-21928 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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