CVE-2018-14839: LG N1A1 NAS Remote Command Execution Vulnerability

Vulnerability summary

CVE-2018-14839 is a critical (CVSS 9.8) OS Command Injection vulnerability in LG N1A1 NAS. It is known to be exploited: CISA lists it, first on 25-03-2022. EPSS estimates a 89.35% chance of exploitation in the next 30 days, higher than 99.7% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 14-05-2019
   PublishedVulnerability first disclosed.
2. 25-03-2022
   Added to CISA KEVLG N1A1 NAS Remote Command Execution Vulnerability
3. 15-04-2022
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

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.

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.