CVE-2026-4017: CWE-121 Stack-based buffer overflow in BlackBerry Ltd QNX Software Development Platform
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.
AI Analysis
Technical Summary
The vulnerability CVE-2026-4017 involves a stack-based buffer overflow in the entry handler of the TraceEvent() system call within the QNX Neutrino kernel. An attacker with local access could exploit this flaw to disclose sensitive information, tamper with data, or cause a denial of service by crashing the kernel. The issue affects QNX Software Development Platform versions 7.0 and 7.1. No vendor advisory or patch is currently available, and the remediation level is unspecified.
Potential Impact
Successful exploitation can lead to high impact outcomes including confidentiality breach (information disclosure), integrity compromise (data tampering), and availability disruption (kernel crash). The attacker requires local access and high attack complexity is indicated by the CVSS vector. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users only and monitor for suspicious activity related to the TraceEvent() system call. Do not assume the vulnerability is mitigated without vendor confirmation.
CVE-2026-4017: CWE-121 Stack-based buffer overflow in BlackBerry Ltd QNX Software Development Platform
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.
CVSS v3.1
Score 7.4high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-4017 involves a stack-based buffer overflow in the entry handler of the TraceEvent() system call within the QNX Neutrino kernel. An attacker with local access could exploit this flaw to disclose sensitive information, tamper with data, or cause a denial of service by crashing the kernel. The issue affects QNX Software Development Platform versions 7.0 and 7.1. No vendor advisory or patch is currently available, and the remediation level is unspecified.
Potential Impact
Successful exploitation can lead to high impact outcomes including confidentiality breach (information disclosure), integrity compromise (data tampering), and availability disruption (kernel crash). The attacker requires local access and high attack complexity is indicated by the CVSS vector. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict local access to trusted users only and monitor for suspicious activity related to the TraceEvent() system call. Do not assume the vulnerability is mitigated without vendor confirmation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- blackberry
- Date Reserved
- 2026-03-11T19:20:13.205Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a56768c68715ace43f08bca
Added to database: 07/14/2026, 17:49:00 UTC
Last enriched: 07/16/2026, 09:14:24 UTC
Last updated: 08/27/2026, 22:52:12 UTC
Views: 57
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