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CVE-2026-59678

portprotonqt allows any users to mount and unmount arbitrary file systems and modify the network configuration via NetworkManager

HIGH
7.1
CVSS Score
Published: July 23, 2026 at 06:48 AM UTC
Updated: October 24, 2026 at 01:10 PM UTC
1 product affected across 1 vendorPortProtonQt

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PortProtonQt· Linux Gaming
90%
0 ≤ v < 0d0f0950ebd948cdf82e8c3e1ebd2bcb9b8bafbe0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHsuse
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-863

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