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Vulnerabilities

Vulnerability · CVE-2018-14839

LG N1A1 NAS Remote Command Execution Vulnerability

Published May 14, 2019 · catalog updated Jun 16, 2026 · LG N1A1 NAS

Patch now

CVE-2018-14839 is in the CISA known-exploited catalog, due Apr 15, 2022. Confirm LG N1A1 NAS against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
89.35%
Remediation
Remediation guidance
Affected products
cpe lg/n1a1 firmware · vendor LG N1A1 NAS

LG N1A1 NAS 3718.510 is affected by: Remote Command Execution. The impact is: execute arbitrary code (remote). The attack vector is: HTTP POST with parameters.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe lg/n1a1 firmware3718.510
  • vendor LG N1A1 NASversion unspecified

How to fix CVE-2018-14839

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2018-14839 is in the CISA known-exploited catalog, due Apr 15, 2022. Confirm LG N1A1 NAS against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with lg/n1a1 firmware 3718.510. Apply updates per vendor instructions.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS 89.35%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 14, 2019 · Catalog

    Detected

    LG N1A1 NAS 3718.510 is affected by: Remote Command Execution. The impact is: execute arbitrary code (remote). The attack vector is: HTTP POST with parameters.

  2. Mar 25, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Apr 15, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    LG N1A1 NAS 3718.510 is affected by: Remote Command Execution. The impact is: execute arbitrary code (remote). The attack vector is: HTTP POST with parameters.

Sources

  • CISA KEVConfirmed exploitationCVE-2018-14839

    LG N1A1 NAS 3718.510 is affected by a remote code execution vulnerability.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2018-14839

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2018-14839

    30-day exploitation probability 89.4%

    first.org
  • NIST NVDVulnerability recordCVE-2018-14839

    LG N1A1 NAS 3718.510 is affected by: Remote Command Execution. The impact is: execute arbitrary code (remote). The attack vector is: HTTP POST with parameters.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2018-14839

    LG N1A1 NAS 3718.510 is affected by a remote code execution vulnerability.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.