Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-4018— TOCTOU race condition in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety

Quick assessment

Affected
BlackBerry Ltd QNX Software Development Platform
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

BlackBerry QNX Software Development Platform是加拿大BlackBerry公司的一套QNX软件开发平台。该平台主要用于开发基于QNX平台的软件。 BlackBerry QNX Software Development Platform存在竞争条件问题漏洞，该漏洞源于TraceEvent()系统调用特定trace命令中的TOCTOU竞争条件问题，可能导致具有本地访问权限和PROCMGR_AID_TRACE能力的攻击者造成信息泄露、数据篡改或QNX Neutrino内

CVSS 6.4 · Medium EPSS 0.10% · P1

Affected Version Matrix 12

VendorProduct Version RangeStatus
BlackBerry Ltd QNX OS for Safety 2.2.8 and earlier affected
cpe:2.3:o:blackberry:qnx_os_for_safety:2.2:8:*:*:*:*:*:* affected
2.1.5 and earlier affected
cpe:2.3:o:blackberry:qnx_os_for_safety:2.1:5:*:*:*:*:*:* affected
2.0.3 and earlier affected
cpe:2.3:o:blackberry:qnx_os_for_safety:2.0:3:*:*:*:*:*:* affected
BlackBerry Ltd QNX Software Development Platform 7.1 affected
cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:* affected
7.0 affected
cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:* affected
BlackBerry Ltd. QNX OS for Medical 2.0.2 and earlier affected
cpe:2.3:o:blackberry:qnx_os_for_medical:2.0:2:*:*:*:*:*:* affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-4018

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
TOCTOU race condition in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
BlackBerry QNX Software Development Platform 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BlackBerry QNX Software Development Platform是加拿大BlackBerry公司的一套QNX软件开发平台。该平台主要用于开发基于QNX平台的软件。 BlackBerry QNX Software Development Platform存在竞争条件问题漏洞，该漏洞源于TraceEvent()系统调用特定trace命令中的TOCTOU竞争条件问题，可能导致具有本地访问权限和PROCMGR_AID_TRACE能力的攻击者造成信息泄露、数据篡改或QNX Neutrino内
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
BlackBerry Ltd QNX Software Development Platform 7.1 -
BlackBerry Ltd QNX OS for Safety 2.2.8 and earlier -
BlackBerry Ltd. QNX OS for Medical 2.0.2 and earlier -

II. Public POCs for CVE-2026-4018

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-4018

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-4018 (1)

Same Patch Batch · BlackBerry Ltd · 2026-07-14 · 3 CVEs total

CVE-2026-4017 7.4 HIGH Buffer overflow in the QNX Neutrino kernel impacts versions of the QNX Software Developmen
CVE-2026-0515 6.2 MEDIUM Insufficient parameter validation in the QNX Neutrino kernel impacts versions of the QNX S

IV. Related Vulnerabilities

Same product: QNX Software Development Platform
Same vendor: BlackBerry Ltd
Same weakness: CWE-367

V. Comments for CVE-2026-4018

No comments yet

Leave a comment