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CVE-2026-4018

MEDIUM
6.4
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-4018
State
PUBLISHED
Assigner
blackberry
Reserved
2026-03-11 19:24 UTC
Published
2026-07-14 17:34 UTC
Last updated
2026-07-14 17:34 UTC
Primary CWE
CWE-367
CWE-367 Time-of-check time-of-use (TOCTOU) race condition
Vendor / Product
BlackBerry Ltd / QNX Software Development Platform
Sources
cve.org  ·  NVD

Severity & Metrics

6.4 MEDIUM CVSS 3.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products (3)
VendorProductPlatformVersions
BlackBerry Ltd QNX OS for Safety — 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:*:*:*:*:*:* …
BlackBerry Ltd QNX Software Development Platform — 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:*:*:*:*:*:*:*
BlackBerry Ltd. QNX OS for Medical — 2.0.2 and earlier, cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2:*:*:*:*:*:*
Weakness (CWE)
CWESourceDescription
CWE-367 cna CWE-367 Time-of-check time-of-use (TOCTOU) race condition
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.4 MEDIUM 3.1 cna CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
References (1)
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