Remote Command Execution in LG N1A1 NAS (CVE‑2018‑14839) Threatens On‑Prem Storage Appliances
What It Is — CVE‑2018‑14839 is a remote command‑execution flaw in the LG N1A1 NAS firmware 3718.510. An unauthenticated attacker can send specially‑crafted network packets that trigger arbitrary code execution with system‑level privileges.
Exploitability — The vulnerability is publicly disclosed, has an assigned CVSS v3.1 score of 9.8 (Critical), and proof‑of‑concept code is available. No patch was released at the time of the CISA KEV notice.
Affected Products — LG N1A1 NAS devices running firmware 3718.510 (all hardware revisions of the N1A1 series).
Why It Matters for Trust & Control Assurance
- Demonstrates the need for a robust vulnerability‑management control that tracks, prioritises, and remediates high‑severity flaws across on‑prem assets.
- Continuous evidence of patch status feeds directly into audit‑ready artefacts that regulators and enterprise buyers demand.
- Failure to remediate such flaws erodes the “defensible evidence” posture that underpins trust‑centric procurement decisions.
Recommended Actions
- Verify firmware version on every LG N1A1 NAS in scope.
- Apply LG’s security patch (or upgrade to a non‑vulnerable firmware release) immediately.
- Record remediation evidence in your control‑mapping repository to satisfy the “patch management” control objective.
- Enable logging of remote connections and monitor for anomalous activity pending patch deployment.
- Map this finding to the relevant VCF control (vulnerability management) and capture the remediation ticket as audit evidence.
Source: CISA KEV – CVE‑2018‑14839