CVE WatchAug 13, 2026

CVE-2018-11138

Quest KACE System Management Appliance Remote Command Execution Vulnerability

CVSS

9.8

Critical

EPSS

91.7%

p100

KEV

YES

Mar 25, 2022

Exploit Today

0-100

Published: May 31, 2018 · Last modified: Aug 13, 2026 · CWE-78

EPSS · 30d

91.7%EPSS · 30 days92.1%

2026-09-162026-10-14

KEV catalog record

Product

Quest / KACE System Management Appliance

Vulnerability

Quest KACE System Management Appliance Remote Command Execution Vulnerability

Added to KEV

Mar 25, 2022

Remediate by

Apr 15, 2022

Known ransomware use

Yes

Summary description

The '/common/download_agent_installer.php' script in the Quest KACE System Management Appliance is accessible by anonymous users and can be abused to perform remote code execution.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2018-11138

Technical description

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.

Official references

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