What is CVE-2026-50077?

CVE-2026-50077 is a high-severity vulnerability in Blackberry Ltd Qnx Hypervisor, classified under Out-of-bounds Write. CVSS score: 7.7/10. Published 2026-11-10.

How severe is CVE-2026-50077?

High severity. CVSS v3 base score is 7.7 out of 10.

Buffer overflow in Blackberry Ltd Qnx Hypervisor

CVE-2026-50077

Invalid Memory Access via the MSI-X table in QVM could allow an attacker in the guest to execute arbitrary code in the QVM to cause memory corruption, information disclosure or a crash of the QVM.

Vulnerability class: Buffer Overflow

Published 2026-11-10.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Blackberry Ltd Qnx Hypervisor — versions cpe:2.3:a:blackberry:qnx_hypervisor:2.0:*:*:*:*:*:*:*, cpe:2.3:a:blackberry:qnx_hypervisor:2.2:*:*:*:*:*:*:*, cpe:2.3:a:blackberry:qnx_hypervisor:8.0:*:*:*:*:*:*:*
Blackberry Ltd Qnx Hypervisor For Safety — versions cpe:2.3:a:blackberry:qnx_hypervisor_for_safety:2.0:*:*:*:*:*:*:*, cpe:2.3:a:blackberry:qnx_hypervisor_for_safety:2.2:*:*:*:*:*:*:*, cpe:2.3:a:blackberry:qnx_hypervisor_for_safety:8.0:*:*:*:*:*:*:*

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

support.blackberry.com/pkb/s/article/141343

Frequently asked questions

What is CVE-2026-50077?: CVE-2026-50077 is a high-severity vulnerability in Blackberry Ltd Qnx Hypervisor, classified under Out-of-bounds Write. CVSS score: 7.7/10. Published 2026-11-10.
How severe is CVE-2026-50077?: High severity. CVSS v3 base score is 7.7 out of 10.