CVE-2026-4018 — MEDIUM (6.4)

Vulnerability 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.

CVSS Score

6.4

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-367

References

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

FAQ

What is CVE-2026-4018?

CVE-2026-4018 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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...

How severe is CVE-2026-4018?

CVE-2026-4018 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-4018?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.