CVE-2026-43212
CVE-2026-43212 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (4th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-27772
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-43212?
- 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.
- How severe is CVE-2026-43212?
- CVE-2026-43212 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-43212 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-43212?
- CVE-2026-43212 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-43212?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-43212 have an EU (EUVD) identifier?
- Yes. CVE-2026-43212 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27772.
- When was CVE-2026-43212 published?
- CVE-2026-43212 was published on 2026-05-06 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/1d8f2f024801019d85159a020b72a4424b46bcf4
- https://git.kernel.org/stable/c/61a56df2fbaad3a4d00f0c6a904b5d1ee8982eb4
- https://git.kernel.org/stable/c/92adfb707beec0fe956424373654a70aad35ea13
- https://git.kernel.org/stable/c/94b0c831eda778ae9e4f2164a8b3de485d8977bb
- https://git.kernel.org/stable/c/b5bf05e05cdf489a04137e4da407de9d4cca5295
- https://git.kernel.org/stable/c/bb1a54f7f011f19ed936632698eae574e0b91063
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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