CVE-2026-4018: medium-severity vulnerability in BlackBerry Ltd QNX Software Development Platform
TOCTOU race condition in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.4epss 0.1%
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:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
BlackBerry Ltd · QNX OS for SafetyBlackBerry Ltd · QNX Software Development PlatformBlackBerry Ltd. · QNX OS for MedicalRelated CVEs — BlackBerry Ltd QNX Software Development Platform
In the same product, most dangerous first.
CVE-2026-40272HIGHVulnerability in the QNX libtraceparser Impacts QNX Software Development PlatformEPSS 0.2%CVE-2026-0515MEDIUMInsufficient parameter validation in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for SafetyEPSS 0.1%CVE-2026-4017HIGHBuffer overflow in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for SafetyEPSS 0.1%CVE-2025-8090MEDIUMVulnerability in the QNX Neutrino Kernel impacts the QNX Software Development Platform and QNX OS for SafetyEPSS 0.1%