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CVE-2025-37877

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: iommu: Clear iommu-dma ops on cleanup If iommu_device_register() encounters an error, it can end up tearing down already-config…

Published May 9, 2025EPSS 0.28%

Overview

CVE-2025-37877 is a medium-severity vulnerability. It was published on May 9, 2025 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:

iommu: Clear iommu-dma ops on cleanup

If iommu_device_register() encounters an error, it can end up tearing

down already-configured groups and default domains, however this

currently still leaves devices hooked up to iommu-dma (and even

historically the behaviour in this area was at best inconsistent across

architectures/drivers...) Although in the case that an IOMMU is present

whose driver has failed to probe, users cannot necessarily expect DMA to

work anyway, it's still arguable that we should do our best to put

things back as if the IOMMU driver was never there at all, and certainly

the potential for crashing in iommu-dma itself is undesirable. Make sure

we clean up the dev->dma_iommu flag along with everything else.

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/104a84276821aed0ed241ce0d82d6c3267e3fcb8Refgit.kernel.org/stable/c/280e5a30100578106a4305ce0118e0aa9b866f12Refgit.kernel.org/stable/c/b14d98641312d972bb3f38e82eddf92898522389

How CyberStrike helps

Frequently asked questions

What is CVE-2025-37877?

CVE-2025-37877 is a medium-severity vulnerability. It was published on May 9, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-37877?

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-2025-37877?

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-2025-37877?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-37877 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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