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CVE-2026-4017

Buffer overflow in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety

Published: Jul 14, 2026Updated: Jul 15, 2026 Sources: CVE List NVDCWE-121
7.4HIGH
NVD MITRE
EPSS Score
0.1%
Top 97.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

Buffer Overflow in the entry handler of the TraceEvent() system call could allow an attacker with local access to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-121

Affected Products

BlackBerry Ltd
commercialaka qnx software development platform, qnx os for safety
QNX Software Development PlatformEmbedded
Operating Systems / rtos-embedded-os
QNX OS for SafetyEmbedded
Operating Systems / rtos-embedded-os
BlackBerry Ltd.
commercialaka blackberry
QNX OS for MedicalEmbedded
Operating Systems / rtos-embedded-os

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

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

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