CVE-2026-4018CWE-367

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

Medium · published July 14, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
0.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00102 · 0.9th percentile
Weakness
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition
Published
2026-07-14T17:34Z
EPSS history
Timeline
  • 14 JUL 17:34Z
    TOCTOU race condition in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety
    cvelistv5