CVE-2026-50079
Vulnerabilities in the QNX Virtual Machine (QVM) affect QNX Hypervisor and QNX Hypervisor for Safety
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
What each source reports
CVE List Score used
Vulnerabilities in the QNX Virtual Machine (QVM) affect QNX Hypervisor and QNX Hypervisor for Safety
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.
- Record
CVE-2026-50079- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-367
- Updated
- 2026-11-10
EUVDEUVD-2026-122655
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.
- Record
EUVD-2026-122655- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-11
GitHub AdvisoriesGHSA-7356-x4xh-v6x9
Time-of-check Time-of-use (TOCTOU) Race Condition in the virtio network virtual device could...
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.
- Record
GHSA-7356-x4xh-v6x9- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-367
- Updated
- 2026-11-10
NVD
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.
- Record
CVE-2026-50079- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-367
- Updated
- 2026-11-10
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD | |
| severity, title | CVE List, NVD | |
| aliases, cwes, references, severity, title | GitHub Advisories | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-50079 is a low vulnerability (CVSS 3.3) in Blackberry Ltd Qnx Hypervisor, published November 10, 2026. No source lists public exploit code. No source names a fixed version.