Medium 5.5Published May 28, 2026

CVE-2026-46142In 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.

Updated under an hour ago (2026-10-19 08:50 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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).

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Undergoing Analysis
Record last updated: Jun 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

linux linux_kernel linux:linux_kernel	from 6.6.117 before 6.6.140; from 6.12.58 before 6.12.88; from 6.17.8 before 6.18; from 6.18.1 before 6.18.30; from 6.19 before 7.0.7; 6.18; 6.18; 6.18; and 3 more ranges	NVD

References

https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92patch
https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721dpatch
https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562patch
https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707patch
https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.