CVE-2026-59678

HighCVSS 7.1/10Last modified Oct 24, 2026

Description

An Incorrect Authorization vulnerability in Linux-Gaming PortProtonQt allows any users to mount and unmount arbitrary file systems and modify the network configuration via NetworkManager.

This issue affects PortProtonQt before 0d0f0950ebd948cdf82e8c3e1ebd2bcb9b8bafbe.

Metrics

CVSS 4.0 7.1/10CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-863

Affected software

VendorProductVersions
Linux-GamingPortProtonQt< 0d0f0950ebd948cdf82e8c3e1ebd2bcb9b8bafbe

References

Timeline

Published
Jul 23, 2026
Last modified
Oct 24, 2026
NVD status
Deferred

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CVE-2026-59678: High severity, CVSS 7.1 | Vulnix