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CVE-2026-46009

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is…

Published May 27, 2026EPSS 0.16%

Overview

CVE-2026-46009 is a medium-severity vulnerability. It was published on May 27, 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:

PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown

epf_ntb_epc_destroy() duplicates the teardown that the caller is

supposed to do later. This leads to an oops when .allow_link fails or

when .drop_link is performed. Remove the helper.

Also drop pci_epc_put(). EPC device refcounting is tied to configfs EPC

group lifetime, and pci_epc_put() in the .drop_link path is sufficient.

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/3446beddba450c8d6f9aca2f028712ac527fead3Refgit.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85dRefgit.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915aRefgit.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3Refgit.kernel.org/stable/c/c3029721b84f59e790285ad27544ed5d3cb0f2a6Refgit.kernel.org/stable/c/c72f6a7ea638f95c486a5cfd86e567b646027687Refgit.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46009?

CVE-2026-46009 is a medium-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-46009?

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-2026-46009?

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-2026-46009?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46009 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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