CVE-2026-4018TOCTOU race condition in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety
Updated under an hour ago ()
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It affects BlackBerry Ltd QNX Software Development Platform and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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TOCTOU Race Condition in specific trace commands of the TraceEvent() system call could allow an attacker with local access and with the PROCMGR_AID_TRACE ability, to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel.
- CVSS
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-367
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- blackberry
- NVD analysis
- Deferred
- Record last updated
- Jul 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
BlackBerry Ltd QNX Software Development Platform blackberry:qnx_software_development_platform (from the name) | 7.1; cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*; 7.0; cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:* | CNA record |
BlackBerry Ltd QNX OS for Safety blackberry:qnx_os_for_safety (from the name) | 2.2.8 and earlier; cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8:*:*:*:*:*:*; 2.1.5 and earlier; cpe:2.3:o:blackberry:qnx_os_for_safety:2.1:5:*:*:*:*:*:*; 2.0.3 and earlier; cpe:2.3:o:blackberry:qnx_os_for_safety:2.0:3:*:*:*:*:*:* | CNA record |
BlackBerry Ltd. QNX OS for Medical blackberry:qnx_os_for_medical (from the name) | 2.0.2 and earlier; cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2:*:*:*:*:*:* | CNA record |
References
- https://support.blackberry.com/pkb/s/article/141213
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.