CVE-2026-4017 (GCVE-0-2026-4017)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:25 – Updated: 2026-07-14 23:36
VLAI
EPSS
VEX
Title
Buffer overflow in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety
Summary
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.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 23:36 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| BlackBerry Ltd | QNX Software Development Platform |
Affected:
7.1
Affected: cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:* (cpe) Affected: 7.0 Affected: cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:* (cpe) |
guessed | |
| BlackBerry Ltd | QNX OS for Safety |
Affected:
2.2.8 and earlier
Affected: cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8:*:*:*:*:*:* (cpe) Affected: 2.1.5 and earlier Affected: cpe:2.3:o:blackberry:qnx_os_for_safety:2.1:5:*:*:*:*:*:* (cpe) Affected: 2.0.3 and earlier Affected: cpe:2.3:o:blackberry:qnx_os_for_safety:2.0:3:*:*:*:*:*:* (cpe) |
guessed | |
| BlackBerry Ltd. | QNX OS for Medical |
Affected:
2.0.2 and earlier
Affected: cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2:*:*:*:*:*:* (cpe) |
guessed |
Date Public
2026-07-14 15:15
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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