Published May 28, 2026Sources checked Nov 11, 2026
5.5MEDIUMCVSS out of 10
What this means
Review the available evidence
CVE-2026-46142 and is rated Medium severity with a CVSS score of 5.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
What to do next
Remediation and response
Microsoft Security Response Center guidance
Vendor revision: Jun 9, 2026
CBL-Mariner Releases
Vendor-listed releases
6.6.141.1-1
CISA KEVNot listedBased on the latest collected catalog
EPSS0.1%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is 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).