CVE-2018-14839
RCE in Lg N1A1 Firmware 3718.510
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2018-14839 is a critical-severity OS Command Injection (CWE-78) vulnerability in Lg N1A1 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique NTDS (T1003.003); ranked in the top 0.2% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
LG N1A1 NAS firmware version 3718.510 contains a remote command execution vulnerability tracked as CVE-2018-14839 and assigned CWE-78. The flaw permits unauthenticated attackers to supply crafted parameters in an HTTP POST request, resulting in execution of arbitrary operating-system commands on the affected network-attached storage device. The issue carries a CVSS 3.1 base score of 9.8, reflecting network attack vector, low complexity, and no required credentials or user interaction, with high impact on confidentiality, integrity, and availability.
An attacker with network access to the NAS web interface can send a single unauthenticated HTTP POST containing malicious parameters and obtain arbitrary code execution. Successful exploitation grants the attacker the ability to read or modify any data on the device, install persistent malware, or use the NAS as a foothold for further network compromise.
Public references, including a detailed technical write-up and CISA’s Known Exploited Vulnerabilities catalog, confirm that the vulnerability has been observed in active exploitation campaigns. No official LG patch or mitigation guidance is referenced in the available sources; organizations are therefore advised to isolate or decommission affected LG N1A1 units until replacement hardware or updated firmware is obtained.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2018-6722
Vulnerability Data
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(s)
- KEV Date Added
- 25 March 2022
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.2.5V1.2.8
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.
Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (none reverse).
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.