CVE-2026-50079: Vulnerabilities in the QNX Virtual Machine (QVM) affect QNX Hypervisor and QNX Hypervisor for Safety

Published Nov 10, 2026

Updated

Time-of-check Time-of-use (TOCTOU) Race Condition in the virtio network virtual device could allow an attacker in the guest to manipulate the virtual network device causing a crash of the QVM.

Affected Software

2 affected components

QNX QNX Hypervisor

QNX QNX Hypervisor for Safety

Event History

Nov 10, 2026

CVE Published

via MITRE·07:22 PM

Data Sourced

via MITRE·07:22 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·08:19 PM

DescriptionSeverityWeakness

Frequently Asked Questions

Who can exploit this issue?

An attacker must already have access to a guest virtual machine. The issue is in the virtio network virtual device and affects the QVM component used by QNX Hypervisor and QNX Hypervisor for Safety.

What is the expected impact of successful exploitation?

Successful exploitation can cause the QVM to crash by manipulating the virtual network device. The provided severity vector indicates no confidentiality or integrity impact, with availability impact limited to low.

Does exploitation require user interaction or network access?

The provided vector indicates local attack access, low attack complexity, low privileges required, and no user interaction. The description specifically identifies an attacker in the guest as the exploitation context.

CVE-2026-50079: Vulnerabilities in the QNX Virtual Machine (QVM) affect QNX Hypervisor and QNX Hypervisor for Safety

Affected Software

Event History

Frequently Asked Questions

Who can exploit this issue?

What is the expected impact of successful exploitation?

Does exploitation require user interaction or network access?

Company

Resources

Contact

Frequently Asked Questions

Who can exploit this issue?

What is the expected impact of successful exploitation?

Does exploitation require user interaction or network access?