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CVE-2018-14839

95
FAUCET Score

CVE-2018-14839 is a critical remote command execution vulnerability affecting LG N1A1 NAS devices (firmware version 3718.510). This flaw allows an unauthenticated attacker to execute arbitrary code remotely via specially crafted HTTP POST requests, leading to complete compromise of the device. With a CVSS score of 9.8 (Critical) and an EPSS score indicating high exploitability, this vulnerability is actively exploited in the wild, as confirmed by its presence in the KEV catalog. While no public exploit modules like Metasploit or Nuclei are listed, significant community discussion suggests awareness and potential for custom exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
3718.510CPE matchmatch criteria
cpe:2.3:o:lg:n1a1_firmware:3718.510:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
89.35%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Mar 25, 2022
This CVE's current EPSS score of 0.8935 is in the 99th 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

No media coverage found for this CVE.

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

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
medium.com / %400x616163/lg-n1a1-unauthenticated-remote-command-injection-cve-2018-14839-9d2cf760e247
ExploitThird Party Advisory