What is CVE-2026-43073?

CVE-2026-43073 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-05.

How severe is CVE-2026-43073?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2026-43073

In the Linux kernel, the following vulnerability has been resolved: x86-64: rename misleadingly named '__copy_user_nocache()' function This function was a masterclass in bad naming, for various historical reasons. It claimed to be a non…

EPSS: 0.000 (2.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 6.18.24, 4.2, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Linux Linux_kernel — versions 4.2

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-43073?: CVE-2026-43073 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-05.
How severe is CVE-2026-43073?: Medium severity. CVSS v3 base score is 5.5 out of 10.