CVE-2018-14839

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 89%CVSS: 9.8Exploit: cisa kev · ssvc active · epss top5pct · epss highExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
89%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

May 14, 2019

Last Modified

November 7, 2025

Advisory Details (1)

Auto-updated Sep 17, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14839

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 52× in last 7d / 227× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 812 total refreshes for this CVE.

  1. 2026-09-19 23:47 UTCGHSA enrichment
  2. 2026-09-19 19:57 UTCGHSA enrichment
  3. 2026-09-19 16:06 UTCGHSA enrichment
  4. 2026-09-19 12:15 UTCGHSA enrichment
  5. 2026-09-19 08:24 UTCGHSA enrichment
  6. 2026-09-19 04:33 UTCGHSA enrichment
  7. 2026-09-19 00:43 UTCGHSA enrichment
  8. 2026-09-18 20:52 UTCEG score recompute
  9. 2026-09-18 20:52 UTCGHSA enrichment
  10. 2026-09-18 19:22 UTCEPSS rescore
  11. 2026-09-18 19:20 UTCCISA KEV update
  12. 2026-09-18 17:00 UTCGHSA enrichment
  13. 2026-09-18 14:15 UTCCISA KEV update
  14. 2026-09-18 13:09 UTCGHSA enrichment
  15. 2026-09-18 09:18 UTCGHSA enrichment
  16. 2026-09-18 05:28 UTCGHSA enrichment
  17. 2026-09-18 01:37 UTCGHSA enrichment
  18. 2026-09-17 21:46 UTCGHSA enrichment
  19. 2026-09-17 17:55 UTCGHSA enrichment
  20. 2026-09-17 14:04 UTCGHSA enrichment
  21. 2026-09-17 10:13 UTCGHSA enrichment
  22. 2026-09-17 06:22 UTCGHSA enrichment
  23. 2026-09-17 02:28 UTCGHSA enrichment
  24. 2026-09-16 22:36 UTCGHSA enrichment
  25. 2026-09-16 18:45 UTCGHSA enrichment
Show 75 more
  1. 2026-09-16 14:55 UTCEG score recompute
  2. 2026-09-16 14:55 UTCGHSA enrichment
  3. 2026-09-16 14:10 UTCCISA KEV update
  4. 2026-09-16 14:03 UTCEPSS rescore
  5. 2026-09-16 11:03 UTCGHSA enrichment
  6. 2026-09-16 07:13 UTCGHSA enrichment
  7. 2026-09-16 03:22 UTCGHSA enrichment
  8. 2026-09-15 23:29 UTCGHSA enrichment
  9. 2026-09-15 19:38 UTCGHSA enrichment
  10. 2026-09-15 15:47 UTCGHSA enrichment
  11. 2026-09-15 11:56 UTCGHSA enrichment
  12. 2026-09-15 08:05 UTCGHSA enrichment
  13. 2026-09-15 04:15 UTCGHSA enrichment
  14. 2026-09-15 00:24 UTCGHSA enrichment
  15. 2026-09-14 20:33 UTCGHSA enrichment
  16. 2026-09-14 19:24 UTCCISA KEV update
  17. 2026-09-14 16:42 UTCGHSA enrichment
  18. 2026-09-14 12:51 UTCGHSA enrichment
  19. 2026-09-14 09:01 UTCGHSA enrichment
  20. 2026-09-14 05:10 UTCGHSA enrichment
  21. 2026-09-14 01:19 UTCGHSA enrichment
  22. 2026-09-13 21:29 UTCGHSA enrichment
  23. 2026-09-13 17:38 UTCGHSA enrichment
  24. 2026-09-13 13:48 UTCGHSA enrichment
  25. 2026-09-13 09:57 UTCGHSA enrichment
  26. 2026-09-13 06:06 UTCGHSA enrichment
  27. 2026-09-13 02:15 UTCGHSA enrichment
  28. 2026-09-12 22:25 UTCGHSA enrichment
  29. 2026-09-12 18:32 UTCEG score recompute
  30. 2026-09-12 18:32 UTCGHSA enrichment
  31. 2026-09-12 14:56 UTCEPSS rescore
  32. 2026-09-12 14:41 UTCGHSA enrichment
  33. 2026-09-12 10:49 UTCGHSA enrichment
  34. 2026-09-12 06:55 UTCGHSA enrichment
  35. 2026-09-12 03:04 UTCGHSA enrichment
  36. 2026-09-11 23:14 UTCGHSA enrichment
  37. 2026-09-11 19:23 UTCGHSA enrichment
  38. 2026-09-11 18:49 UTCCISA KEV update
  39. 2026-09-11 15:33 UTCGHSA enrichment
  40. 2026-09-11 11:42 UTCGHSA enrichment
  41. 2026-09-11 07:51 UTCGHSA enrichment
  42. 2026-09-11 04:00 UTCGHSA enrichment
  43. 2026-09-11 00:09 UTCGHSA enrichment
  44. 2026-09-10 20:18 UTCGHSA enrichment
  45. 2026-09-10 19:28 UTCCISA KEV update
  46. 2026-09-10 16:27 UTCGHSA enrichment
  47. 2026-09-10 12:36 UTCEG score recompute
  48. 2026-09-10 12:36 UTCGHSA enrichment
  49. 2026-09-10 09:27 UTCEPSS rescore
  50. 2026-09-10 08:45 UTCGHSA enrichment
  51. 2026-09-10 04:55 UTCGHSA enrichment
  52. 2026-09-10 01:05 UTCGHSA enrichment
  53. 2026-09-09 21:13 UTCGHSA enrichment
  54. 2026-09-09 19:08 UTCCISA KEV update
  55. 2026-09-09 17:22 UTCGHSA enrichment
  56. 2026-09-09 13:31 UTCGHSA enrichment
  57. 2026-09-09 09:38 UTCGHSA enrichment
  58. 2026-09-09 05:47 UTCGHSA enrichment
  59. 2026-09-09 01:56 UTCGHSA enrichment
  60. 2026-09-08 22:06 UTCGHSA enrichment
  61. 2026-09-08 18:54 UTCCISA KEV update
  62. 2026-09-08 18:16 UTCGHSA enrichment
  63. 2026-09-08 14:25 UTCGHSA enrichment
  64. 2026-09-08 10:32 UTCGHSA enrichment
  65. 2026-09-08 06:41 UTCGHSA enrichment
  66. 2026-09-08 02:50 UTCGHSA enrichment
  67. 2026-09-07 23:00 UTCGHSA enrichment
  68. 2026-09-07 19:09 UTCGHSA enrichment
  69. 2026-09-07 15:18 UTCGHSA enrichment
  70. 2026-09-07 11:27 UTCGHSA enrichment
  71. 2026-09-07 07:37 UTCGHSA enrichment
  72. 2026-09-07 03:43 UTCGHSA enrichment
  73. 2026-09-06 23:51 UTCGHSA enrichment
  74. 2026-09-06 23:49 UTCGHSA enrichment
  75. 2026-09-06 19:57 UTCGHSA enrichment

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Frequently asked(6)

What is CVE-2018-14839?
CVE-2018-14839 is a critical vulnerability published on May 14, 2019. 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.
When was CVE-2018-14839 disclosed?
CVE-2018-14839 was first published in the National Vulnerability Database on May 14, 2019, with the most recent update on November 7, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-14839 actively exploited?
Yes. CISA added CVE-2018-14839 to the Known Exploited Vulnerabilities catalog on March 25, 2022, affecting LG N1A1 NAS. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2018-14839?
CVE-2018-14839 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2018-14839?
CVE-2018-14839 affects LG N1A1 NAS. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2018-14839?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-14839, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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