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CVE-2025-37906

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd ublk_cancel_cmd() calls io_uring_cmd_done() to complet…

Published May 20, 2025CWE-362EPSS 0.14%

Overview

CVE-2025-37906 is a high-severity vulnerability. It was published on May 20, 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:

ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd

ublk_cancel_cmd() calls io_uring_cmd_done() to complete uring_cmd, but

we may have scheduled task work via io_uring_cmd_complete_in_task() for

dispatching request, then kernel crash can be triggered.

Fix it by not trying to canceling the command if ublk block request is

started.

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/f40139fde5278d81af3227444fd6e76a76b9506dRefgit.kernel.org/stable/c/fb2eb9ddf556f93fef45201e1f9d2b8674bcc975

How CyberStrike helps

Frequently asked questions

What is CVE-2025-37906?

CVE-2025-37906 is a high-severity vulnerability. It was published on May 20, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-37906?

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-2025-37906?

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-2025-37906?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-37906 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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