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CVE-2018-5406

43
FAUCET Score

CVE-2018-5406 describes a critical Cross-Origin Resource Sharing (CORS) misconfiguration in Quest Kace K1000 Appliance versions prior to 9.0.270. This vulnerability allows an unauthenticated, remote attacker to perform sensitive actions, including adding new administrator accounts or altering appliance settings. With a CVSS score of 8.8 (HIGH), the exploit is network-based with low attack complexity, leading to high impacts on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, public exploit code exists on ExploitDB, and the vulnerability has garnered significant community discussion and media coverage, indicating a high potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.0.270CPE matchmatch criteria
cpe:2.3:o:quest:kace_systems_management_appliance_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
12.21%
Probability of exploitation in next 30 days
EPSS Percentile
95.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-46956 · Jun 3, 2019
This CVE's current EPSS score of 0.1221 is in the 96th percentile among its peer group of 14,855 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/153150/Dell-KACE-System-Management-Appliance-SMA-XSS-SQL-Injection.html
ExploitThird Party AdvisoryVDB Entry
support.quest.com / kb/288310/cert-coordination-center-report-update
Vendor Advisory
kb.cert.org / vuls/id/877837
Third Party AdvisoryUS Government Resource