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
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 89%CVSS: 9.8Exploit: NoneExposed: 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
99.8%
KEV
⚠ Exploited

Published

May 14, 2019

Last Modified

November 7, 2025

Advisory Details (1)

Auto-updated Jun 1, 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 49× in last 7d / 211× 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 395 total refreshes for this CVE.

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