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CVE-2026-46038

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Free the node during ctrl_cmd_bye() A node sends the BYE packet when it is about to go down.

Published May 27, 2026CWE-401EPSS 0.13%

Overview

CVE-2026-46038 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:

net: qrtr: ns: Free the node during ctrl_cmd_bye()

A node sends the BYE packet when it is about to go down. So the nameserver

should advertise the removal of the node to all remote and local observers

and free the node finally. But currently, the nameserver doesn't free the

node memory even after processing the BYE packet. This causes the node

memory to leak.

Hence, remove the node from Xarray list and free the node memory during

both success and failure case of ctrl_cmd_bye().

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/076e4b162d6caba12c229e7f262df5b6881162b0Refgit.kernel.org/stable/c/154fc7fe3f62c46891c3c4302f4b5b5391c932e6Refgit.kernel.org/stable/c/25d580a46b079a7963ff024a5195e547baf12b64Refgit.kernel.org/stable/c/65932f5102bb5377db36c8a4f0c28179a1967a9aRefgit.kernel.org/stable/c/68efba36446a7774ea5b971257ade049272a07acRefgit.kernel.org/stable/c/6c9cca46acb6f22e63f015ea7b2ed6032d2badf5Refgit.kernel.org/stable/c/a5a454f3364877b22f0e5a165df8b3702ff96ae7Refgit.kernel.org/stable/c/ff78ed177a66763085e3214d6fbe13ca8f0b3f11

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46038?

CVE-2026-46038 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-2026-46038?

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-2026-46038?

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-2026-46038?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46038 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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