CVE-2026-4018

MEDIUM

TOCTOU race condition in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1

Scores

CVSS v3 6.4
EPSS 0.0009
EPSS Percentile 0.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-367
Status published
Products (12)
BlackBerry Ltd/QNX OS for Safety 2.0.3 and earlier
BlackBerry Ltd/QNX OS for Safety 2.1.5 and earlier
BlackBerry Ltd/QNX OS for Safety 2.2.8 and earlier
BlackBerry Ltd/QNX OS for Safety cpe:2.3:o:blackberry:qnx_os_for_safety:2.0:3:*:*:*:*:*:*
BlackBerry Ltd/QNX OS for Safety cpe:2.3:o:blackberry:qnx_os_for_safety:2.1:5:*:*:*:*:*:*
BlackBerry Ltd/QNX OS for Safety cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8:*:*:*:*:*:*
BlackBerry Ltd/QNX Software Development Platform 7.0
BlackBerry Ltd/QNX Software Development Platform 7.1
BlackBerry Ltd/QNX Software Development Platform cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:*
BlackBerry Ltd/QNX Software Development Platform cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*
... and 2 more
Published Jul 14, 2026
Tracked Since Jul 14, 2026