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CVE-2018-11138

CriticalPublished

Quest KACE System Management Appliance Remote Command Execution Vulnerability

Published: May 31, 2018
Updated: Aug 13, 2026
Assigning CNA: mitre
Evidence observed: Jun 27, 2018

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

92.1%

High · next 30 days

Percentile: 99.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

The '/common/download_agent_installer.php' script in the Quest KACE System Management Appliance 8.0.318 is accessible by anonymous users and can be abused to execute arbitrary commands on the system.

Sources

Quest KACE Systems Management - Command Injection (Metasploit)Exploit
Metasploit · unix · Jun 27, 2018

Responsible use

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