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CVE-2026-4018

27
FAUCET Score

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.

First published: Jul 14, 2026Last modified: Jul 14, 2026

Impacted Technologies

VendorProductVersion(s)CPE
BlackBerry Ltd.QNX OS For Medical
2.0.2 and earlier, cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2:*:*:*:*:*:*CNA affecteddefault unaffected
BlackBerry LtdQNX OS For Safety
2.0.3 and earlier, 2.1.5 and earlier, 2.2.8 and earlier, cpe:2.3:o:blackberry:qnx_os_for_safety:2.0:3:*:*:*:*:*:*, cpe:2.3:o:blackberry:qnx_os_for_safety:2.1:5:*:*:*:*:*:*, cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8:*:*:*:*:*:*CNA affecteddefault unaffected
BlackBerry LtdQNX Software Development Platform
7.0, 7.1, cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:*, cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.5
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.09%
Probability of exploitation in next 30 days
EPSS Percentile
0.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0009 is in the 14th percentile among its peer group of 418 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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