Buffer overflow in Blackberry Ltd Qnx Os For Safety
CVE-2026-4017
Buffer Overflow in the entry handler of the TraceEvent() system call could allow an attacker with local access to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel.
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Blackberry Ltd Qnx Os For Safety — versions 2.2.8 and earlier, cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8:*:*:*:*:*:*, 2.1.5 and earlier
- Blackberry Ltd Qnx Software Development Platform — versions 7.1, cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*, 7.0
- Blackberry Ltd. Qnx Os For Medical — versions 2.0.2 and earlier, cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2:*:*:*:*:*:*
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-4017?
- CVE-2026-4017 is a high-severity vulnerability in Blackberry Ltd Qnx Os For Safety, classified under Stack-based Buffer Overflow. CVSS score: 7.4/10. Published 2026-07-14.
- How severe is CVE-2026-4017?
- High severity. CVSS v3 base score is 7.4 out of 10.