CVE-2026-43143
CVE-2026-43143 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-27704
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: mfd: core: Add locking around 'mfd_of_node_list' Manipulating a list in the kernel isn't safe without some sort of mutual exclusion. Add a mutex any time we access / modify 'mfd_of_node_list' to prevent possible crashes.
Frequently asked questions
- What is CVE-2026-43143?
- In the Linux kernel, the following vulnerability has been resolved: mfd: core: Add locking around 'mfd_of_node_list' Manipulating a list in the kernel isn't safe without some sort of mutual exclusion. Add a mutex any time we access / modify 'mfd_of_node_list' to prevent possible crashes.
- How severe is CVE-2026-43143?
- CVE-2026-43143 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-43143 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-43143?
- CVE-2026-43143 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-43143?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-43143 have an EU (EUVD) identifier?
- Yes. CVE-2026-43143 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27704.
- When was CVE-2026-43143 published?
- CVE-2026-43143 was published on 2026-05-06 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/20117c92bcf9c11afd64d7481d8f94fdf410726e
- https://git.kernel.org/stable/c/45341856ecda1d56689451abd5cf1d1aa57dbe47
- https://git.kernel.org/stable/c/9b02e3fec3a7fcb990b4d3bd3b13d7edf123dca6
- https://git.kernel.org/stable/c/db131ef9d8980cf60dcac8cf94c036eccf75e5d0
- https://git.kernel.org/stable/c/dcfa679bba02412f2087be21cf06ae88b1f4e0ef
- https://git.kernel.org/stable/c/e2e7c275f557e2b75e3128f4818063798248774c
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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