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CVE-2026-43212

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Make cpumask_of_node() robust against NUMA_NO_NODE The arch definition of cpumask_of_node() cannot handle NUMA_NO_NO…

Published May 6, 2026EPSS 0.18%

Overview

CVE-2026-43212 is a high-severity vulnerability. It was published on May 6, 2026 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:

LoongArch: Make cpumask_of_node() robust against NUMA_NO_NODE

The arch definition of cpumask_of_node() cannot handle NUMA_NO_NODE -

which is a valid index - so add a check for this.

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/1d8f2f024801019d85159a020b72a4424b46bcf4Refgit.kernel.org/stable/c/61a56df2fbaad3a4d00f0c6a904b5d1ee8982eb4Refgit.kernel.org/stable/c/92adfb707beec0fe956424373654a70aad35ea13Refgit.kernel.org/stable/c/94b0c831eda778ae9e4f2164a8b3de485d8977bbRefgit.kernel.org/stable/c/b5bf05e05cdf489a04137e4da407de9d4cca5295Refgit.kernel.org/stable/c/bb1a54f7f011f19ed936632698eae574e0b91063

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43212?

CVE-2026-43212 is a high-severity vulnerability. It was published on May 6, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-43212?

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-2026-43212?

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-2026-43212?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43212 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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