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CVE-2018-17173

81
FAUCET Score

CVE-2018-17173 is a critical remote code execution vulnerability affecting LG SuperSign CMS, specifically through the sourceUri parameter in the qsr_server/device/getThumbnail endpoint. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network without authentication, allowing attackers full control over the affected system. While not listed on CISA's KEV catalog, public exploit code, including Metasploit modules and Nuclei templates, is readily available, and it has garnered significant community discussion and media coverage, indicating a high potential for active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
2.5CPE matchmatch criteria
cpe:2.3:a:lg:supersign_cms:2.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
56.24%
Probability of exploitation in next 30 days
EPSS Percentile
99.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Nuclei: CVE-2018-17173 · Oct 14, 2025
ExploitDB: EDB-46795 · May 6, 2019
This CVE's current EPSS score of 0.5624 is in the 97th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

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

Remediation

Remediation records are not available for this CVE.

References

mamaquieroserpentester.blogspot.com / 2018/09/lg-supersign-rce-to-luna-and-back-to.html
ExploitTechnical DescriptionThird Party Advisory
packetstormsecurity.com / files/152733/LG-Supersign-EZ-CMS-Remote-Code-Execution.html
exploit-db.com / exploits/45448
Third Party AdvisoryVDB Entry
exploit-db.com / exploits/46795