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CVE-2018-11139

49
FAUCET Score

CVE-2018-11139 describes a critical command injection vulnerability in the Quest KACE System Management Appliance version 8.0.318. An authenticated attacker can exploit the /common/ajax_email_connection_test.php script by sending unsanitized input to the 'TEST_SERVER' parameter, leading to arbitrary command execution on the system. This vulnerability carries a CVSS score of 8.8 (High), indicating a severe risk with high impact on confidentiality, integrity, and availability, requiring only low privileges and no user interaction. Despite its high severity and a FAUCET Risk Score of 94/100, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
8.0.318CPE matchmatch criteria
cpe:2.3:a:quest:kace_system_management_appliance:8.0.318:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
42.92%
Probability of exploitation in next 30 days
EPSS Percentile
98.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.4292 is in the 98th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

coresecurity.com / advisories/quest-kace-system-management-appliance-multiple-vulnerabilities
ExploitTechnical DescriptionThird Party Advisory