Vulnerability · Published Jul 14, 2026 · Assigned by blackberry
CVE-2026-4017Buffer overflow in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety
High 7.4
In plain English
A high-severity stack buffer overflow in QNX OS for Medical from BlackBerry Ltd.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.1%top 96.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| BlackBerry Ltd | QNX Software Development Platform | 7.1cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*7.0cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:* |
| BlackBerry Ltd | QNX OS for Safety | 2.2.8 and earliercpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8:*:*:*:*:*:*2.1.5 and earliercpe:2.3:o:blackberry:qnx_os_for_safety:2.1:5:*:*:*:*:*:*2.0.3 and earliercpe:2.3:o:blackberry:qnx_os_for_safety:2.0:3:*:*:*:*:*:* |
| BlackBerry Ltd. | QNX OS for Medical | 2.0.2 and earliercpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2:*:*:*:*:*:* |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H