CVE-2026-50079

LOWCVSS 3.3/10

Last modified

CVE-2026-50079 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. 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..

Description

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.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
BlackBerry LtdQNX Hypervisorcpe:2.3:a:blackberry:qnx_hypervisor:8.0:*:*:*:*:*:*:*; cpe:2.3:a:blackberry:qnx_hypervisor:2.2:*:*:*:*:*:*:*; cpe:2.3:a:blackberry:qnx_hypervisor:2.0:*:*:*:*:*:*:*
BlackBerry LtdQNX Hypervisor for Safetycpe:2.3:a:blackberry:qnx_hypervisor_for_safety:8.0:*:*:*:*:*:*:*; cpe:2.3:a:blackberry:qnx_hypervisor_for_safety:2.2:*:*:*:*:*:*:*; cpe:2.3:a:blackberry:qnx_hypervisor_for_safety:2.0:*:*:*:*:*:*:*

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-50079?
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.
How severe is CVE-2026-50079?
CVE-2026-50079 has a CVSS score of 3.3/10 (LOW severity).
How do I fix CVE-2026-50079?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST