# CVE-2018-11138: Quest KACE System Management Appliance Remote Command Execution Vulnerability

Source: https://junglewise.ai/threats/cve-2018-11138-quest-kace-system-management-appliance-remote-command-execution  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-03-25. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2018-11138 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2022-03-25

The '/common/download_agent_installer.php' script in Quest KACE System Management Appliance allows anonymous users to execute arbitrary commands on the system. This OS command injection vulnerability can be exploited remotely without authentication.

Vendors: [Quest](https://junglewise.ai/threats/vendors/quest).

## Quick answers

**Is CVE-2018-11138 exploited in the wild?** Yes. CVE-2018-11138 is known to be exploited in the wild, first recorded on 25 March 2022. Treat it as urgent.

**How severe is CVE-2018-11138?** Critical severity, with a CVSS score of 9.8, published 25 March 2022.

**Which products and versions are affected?** Quest KACE System Management Appliance 8.0.318.

**Is there a fix for CVE-2018-11138?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2018-11138 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2018-11138?** Check whether you run Quest KACE System Management Appliance. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Quest KACE System Management Appliance 8.0.318

## Timeline

- 2018-05-31: disclosed: NVD Published Date
- 2022-03-25: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2022-04-15: other: CISA due date for remediation