Vulnerability in Linux

CVE-2026-46142

In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix VF illegal register access Register WX_CFG_PORT_ST is a PF restricted register. When a VF is initialized, attempting to read this register triggers an illegal register access, which lead to a system hang. When the device is VF, the bus function ID can be obtained directly from the PCI_FUNC(pdev->devfn).

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.002 (4.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-46142: held from 0.001 to 0.002.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

  • Linux — versions 7.0.7, a04ea57aae375bdda1cb57034d8bcbb351e1f973, 6.18.30
  • Linux Kernel — versions 6.18, 7.1

References

Frequently asked questions

What is CVE-2026-46142?
CVE-2026-46142 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-28.
How severe is CVE-2026-46142?
Medium severity. CVSS v3 base score is 5.5 out of 10.