CVE-2018-4019

HIGHNVD 7.27.8▲
EchelonGraph scoreHIGH confidence

Score elevated to 7.8 because EPSS predicts 49% probability of exploitation within the next 30 days (top 1.2% of all CVEs). NVD baseline CVSS 7.2 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Elevated
7.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 49%CVSS: 7.2Exploit: NoneExposed: 0

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

An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request. The attacker can exploit this and gain the ability to execute arbitrary commands on the system. An attacker needs to be able to send authenticated POST requests to the administration web interface. Command injection is possible in the powerd_normal_mode parameter.

CVSS v3
7.2
EG Score
7.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: Track

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
Severity78% × 45%
Exploitation49% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
98.8%
KEV
Not listed

Published

December 3, 2018

Last Modified

November 21, 2024

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 34× 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.

  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:36 UTCEG score recompute▲ 0.60
  3. 2026-07-22 22:16 UTCEG score recompute
  4. 2026-07-22 14:05 UTCEPSS rescore
  5. 2026-07-21 15:22 UTCEPSS rescore
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  15. 2026-07-13 06:10 UTCEPSS rescore
  16. 2026-07-12 05:43 UTCEPSS rescore
  17. 2026-07-09 19:06 UTCEPSS rescore
  18. 2026-07-08 15:11 UTCEPSS rescore
  19. 2026-07-07 13:42 UTCEPSS rescore
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  21. 2026-07-04 06:28 UTCEPSS rescore
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  23. 2026-07-02 16:54 UTCEPSS rescore
  24. 2026-07-01 15:03 UTCEPSS rescore
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  1. 2026-06-28 14:04 UTCEPSS rescore
  2. 2026-06-28 04:53 UTCEPSS rescore
  3. 2026-06-28 04:53 UTCEPSS rescore
  4. 2026-06-27 03:06 UTCEPSS rescore
  5. 2026-06-27 03:06 UTCEPSS rescore
  6. 2026-06-25 13:47 UTCEPSS rescore
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  8. 2026-06-24 14:02 UTCEPSS rescore
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  10. 2026-06-23 21:30 UTCEPSS rescore
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  13. 2026-06-21 01:57 UTCEPSS rescore
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  15. 2026-06-18 17:50 UTCEPSS rescore
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  18. 2026-06-17 17:50 UTCEPSS rescore
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  21. 2026-06-15 17:45 UTCEPSS rescore
  22. 2026-06-14 23:15 UTCEPSS rescore
  23. 2026-06-14 23:14 UTCEPSS rescore
  24. 2026-06-13 22:58 UTCEPSS rescore
  25. 2026-06-12 23:09 UTCEPSS rescore
  26. 2026-06-12 23:09 UTCEPSS rescore
  27. 2026-06-10 22:16 UTCEPSS rescore
  28. 2026-06-10 13:19 UTCEPSS rescore
  29. 2026-06-06 13:45 UTCEPSS rescore
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  31. 2026-06-05 22:45 UTCEPSS rescore
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  34. 2026-06-01 13:50 UTCEPSS rescore
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  36. 2026-05-28 13:42 UTCEPSS rescore
  37. 2026-05-28 13:42 UTCEPSS rescore
  38. 2026-05-28 00:40 UTCEG score recompute
  39. 2026-05-28 00:39 UTCGHSA enrichment
  40. 2026-05-27 13:38 UTCEPSS rescore
  41. 2026-05-27 13:38 UTCEPSS rescore
  42. 2026-05-26 13:42 UTCEPSS rescore
  43. 2026-05-26 13:42 UTCEPSS rescore
  44. 2026-05-26 07:17 UTCEPSS rescore
  45. 2026-05-26 07:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2018-4019?
CVE-2018-4019 is a high vulnerability published on December 3, 2018. An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the parameters of a specific POST request. The attacker can exploit this and gain the ability to execute arbitrary commands on the system. An attacker needs to be able to send authenticated…
When was CVE-2018-4019 disclosed?
CVE-2018-4019 was first published in the National Vulnerability Database on December 3, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-4019 actively exploited?
CVE-2018-4019 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-4019?
CVE-2018-4019 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.8.
How do I remediate CVE-2018-4019?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-4019, 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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