CVE-2018-11138
Quest KACE System Management Appliance Remote Command Execution Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 15 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 91.72% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 27 June 2018
- CISA KEV
- Listed 25 March 2022 · due 15 April 2022 · used in ransomware campaigns
- Weakness
- CWE-78
- Affected
- quest/kace system management appliance
- Source
- cve@mitre.org
EPSS 91.7% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2018-11138
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- https://www.coresecurity.com/advisories/quest-kace-system-management-appliance-multiple-vulnerabilitiesExploit, Technical Description, Third Party Advisory
- https://www.exploit-db.com/exploits/44950/Exploit, Third Party Advisory, VDB Entry
- https://www.coresecurity.com/advisories/quest-kace-system-management-appliance-multiple-vulnerabilitiesExploit, Technical Description, Third Party Advisory
- https://www.exploit-db.com/exploits/44950/Exploit, Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-11138US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.