CVE-2026-4017
Buffer overflow in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety
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.
INFO
Published Date :
July 14, 2026, 6:17 p.m.
Last Modified :
July 15, 2026, 4:24 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-4017
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | dbe78b00-5e7b-4fda-8748-329789ecfc5c | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Apply vendor patches for QNX Neutrino kernel.
- Update the TraceEvent() system call handler.
- Restrict local access to the QNX Neutrino kernel.
- Monitor system integrity for anomalies.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-4017.
| URL | Resource |
|---|---|
| https://support.blackberry.com/pkb/s/article/141213 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-4017 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-4017
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-4017 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-4017 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 15, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-4017', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-14T23:36:16.979515Z'} -
New CVE Received by [email protected]
Jul. 14, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'BlackBerry Ltd', 'product': 'QNX Software Development Platform', 'versions': [{'status': 'affected', 'version': '7.1'}, {'status': 'affected', 'version': 'cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:*', 'versionType': 'cpe'}, {'status': 'affected', 'version': '7.0'}, {'status': 'affected', 'version': 'cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:*', 'versionType': 'cpe'}], 'defaultStatus': 'unaffected'}, {'vendor': 'BlackBerry Ltd', 'product': 'QNX OS for Safety', 'versions': [{'status': 'affected', 'version': '2.2.8 and earlier'}, {'status': 'affected', 'version': 'cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8:*:*:*:*:*:*', 'versionType': 'cpe'}, {'status': 'affected', 'version': '2.1.5 and earlier'}, {'status': 'affected', 'version': 'cpe:2.3:o:blackberry:qnx_os_for_safety:2.1:5:*:*:*:*:*:*', 'versionType': 'cpe'}, {'status': 'affected', 'version': '2.0.3 and earlier'}, {'status': 'affected', 'version': 'cpe:2.3:o:blackberry:qnx_os_for_safety:2.0:3:*:*:*:*:*:*', 'versionType': 'cpe'}], 'defaultStatus': 'unaffected'}, {'vendor': 'BlackBerry Ltd.', 'product': 'QNX OS for Medical', 'versions': [{'status': 'affected', 'version': '2.0.2 and earlier'}, {'status': 'affected', 'version': 'cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2:*:*:*:*:*:*', 'versionType': 'cpe'}], 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V3.1 AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-121 Added Reference https://support.blackberry.com/pkb/s/article/141213