What is CVE-2018-14839?

CVE-2018-14839 is a critical-severity vulnerability in Lg N1a1, classified under OS Command Injection. CVSS score: 9.8/10. Published 2019-05-14.

How severe is CVE-2018-14839?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-14839 known to be exploited?

Yes. CVE-2018-14839 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.

RCE in Lg N1a1

CVE-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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.894 (99.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Lg N1a1
Lg N1a1_firmware — versions 3718.510
N/a — versions n/a

Weakness classification (CWE)

CWE-78 — OS Command Injection

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-04-15.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2018-14839?: CVE-2018-14839 is a critical-severity vulnerability in Lg N1a1, classified under OS Command Injection. CVSS score: 9.8/10. Published 2019-05-14.
How severe is CVE-2018-14839?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-14839 known to be exploited?: Yes. CVE-2018-14839 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.