CVE-2026-4018 — TOCTOU race condition in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS…

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
BlackBerry Ltd / QNX Software Development Platform	affected 7.1; affected cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:::::::; affected 7.0; affected cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:::::::
BlackBerry Ltd / QNX OS for Safety	affected 2.2.8 and earlier; affected cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8::::::; affected 2.1.5 and earlier; affected cpe:2.3:o:blackberry:qnx_os_for_safety:2.1:5::::::; affected 2.0.3 and earlier; affected cpe:2.3:o:blackberry:qnx_os_for_safety:2.0:3::::::
BlackBerry Ltd. / QNX OS for Medical	affected 2.0.2 and earlier; affected cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2::::::

CWE

CWE-367

References

https://support.blackberry.com/pkb/s/article/141213

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.