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CVE-2018-11138

Critical CVSS 9.8 Known exploited

Published 2018-05-31 · last changed 2026-08-13 · added to CISA KEV 2022-03-25

This one is being exploited in the wild.

CISA added CVE-2018-11138 to the Known Exploited Vulnerabilities catalog on 2022-03-25. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2018-11138, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

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

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