CVE-2026-59678

HIGH

Linux-Gaming PortProtonQt - Unauthorized Mount and Network Changes

Title source: manual

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.

References (1)

Core 1

Core References

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-59678

Scores

CVSS v4 7.1

EPSS 0.0012

EPSS Percentile 1.9%

CVSS: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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-863

Status published

Products (1)

Linux-Gaming/PortProtonQt < 0d0f0950ebd948cdf82e8c3e1ebd2bcb9b8bafbe

Published Jul 23, 2026

Tracked Since Jul 23, 2026