Buffer overflow in Blackberry Ltd Qnx OS For Medical
CVE-2026-40275
Heap-based Buffer Overflow in the DCMD_PROC_EVENT handler of the procnto could allow an attacker with local access to cause an information disclosure, data tampering or a crash of the QNX Neutrino kernel.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
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 OS For Medical — versions cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:3:*:*:*:*:*:*
- Blackberry Ltd Qnx OS For Safety — versions cpe:2.3:o:blackberry:qnx_os_for_safety:2.0:4:*:*:*:*:*:*, cpe:2.3:o:blackberry:qnx_os_for_safety:2.1:6:*:*:*:*:*:*, cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:9:*:*:*:*:*:*
- Blackberry Ltd Qnx Software Development Platform — versions cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:*, cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-40275?
- CVE-2026-40275 is a high-severity vulnerability in Blackberry Ltd Qnx OS For Medical, classified under Heap-based Buffer Overflow. CVSS score: 8.4/10. Published 2026-11-10.
- How severe is CVE-2026-40275?
- High severity. CVSS v3 base score is 8.4 out of 10.