CVE-2017-3144

HIGHNVD 7.58.7▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.7 because EPSS predicts 73% probability of exploitation within the next 30 days (top 0.6% of all CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
7.5
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 73%
CISA-KEV: Not listedEPSS: 73%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

A vulnerability stemming from failure to properly clean up closed OMAPI connections can lead to exhaustion of the pool of socket descriptors available to the DHCP server. Affects ISC DHCP 4.1.0 to 4.1-ESV-R15, 4.2.0 to 4.2.8, 4.3.0 to 4.3.6. Older versions may also be affected but are well beyond their end-of-life (EOL). Releases prior to 4.1.0 have not been tested.

CVSS v3
7.5
EG Score
8.7(high)
EG Risk
73(Track)
EG Risk 73/100SSVC: 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
Severity87% × 45%
Exploitation73% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.4%
KEV
Not listed

Published

January 16, 2019

Last Modified

November 21, 2024

References (12)

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuisc-dhcp-server-ldap (4.3.5-3ubuntu2.2) @ artful2026-05-27ubuntu
redhatdhcp-12:4.2.5-58.el7_4.12018-01-25redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 11× in last 7d / 26× 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 01:29 UTCEG score recompute▲ 1.20
  2. 2026-07-22 22:08 UTCEG score recompute
  3. 2026-07-22 14:04 UTCEPSS rescore
  4. 2026-07-22 14:04 UTCEPSS rescore
  5. 2026-07-21 00:17 UTCOSV refresh
  6. 2026-07-20 17:04 UTCEPSS rescore
  7. 2026-07-19 02:26 UTCEPSS rescore
  8. 2026-07-19 02:26 UTCEPSS rescore
  9. 2026-07-18 10:00 UTCEPSS rescore
  10. 2026-07-16 16:59 UTCEPSS rescore
  11. 2026-07-16 16:59 UTCEPSS rescore
  12. 2026-07-15 16:54 UTCEPSS rescore
  13. 2026-07-13 22:26 UTCEPSS rescore
  14. 2026-07-12 05:43 UTCEPSS rescore
  15. 2026-07-09 19:06 UTCEPSS rescore
  16. 2026-07-08 15:10 UTCEPSS rescore
  17. 2026-07-04 06:28 UTCEPSS rescore
  18. 2026-07-03 19:26 UTCOSV refresh
  19. 2026-07-02 16:54 UTCEPSS rescore
  20. 2026-07-01 15:02 UTCEPSS rescore
  21. 2026-06-28 14:04 UTCEPSS rescore
  22. 2026-06-28 04:53 UTCEPSS rescore
  23. 2026-06-27 03:06 UTCEPSS rescore
  24. 2026-06-27 03:05 UTCEPSS rescore
  25. 2026-06-25 13:47 UTCEPSS rescore
Show 39 more
  1. 2026-06-23 21:30 UTCEPSS rescore
  2. 2026-06-21 01:57 UTCEPSS rescore
  3. 2026-06-21 01:57 UTCEPSS rescore
  4. 2026-06-17 17:50 UTCEPSS rescore
  5. 2026-06-15 17:45 UTCEPSS rescore
  6. 2026-06-15 07:13 UTCOSV refresh
  7. 2026-06-14 23:14 UTCEPSS rescore
  8. 2026-06-13 22:57 UTCEPSS rescore
  9. 2026-06-12 23:09 UTCEPSS rescore
  10. 2026-06-10 22:15 UTCEPSS rescore
  11. 2026-06-10 13:19 UTCEPSS rescore
  12. 2026-06-08 14:14 UTCEPSS rescore
  13. 2026-06-08 14:14 UTCEPSS rescore
  14. 2026-06-06 13:45 UTCEPSS rescore
  15. 2026-06-06 13:45 UTCEPSS rescore
  16. 2026-06-05 22:44 UTCEPSS rescore
  17. 2026-06-05 06:08 UTCEPSS rescore
  18. 2026-06-05 06:08 UTCEPSS rescore
  19. 2026-06-04 13:10 UTCEPSS rescore
  20. 2026-06-02 20:11 UTCEPSS rescore
  21. 2026-06-02 20:11 UTCEPSS rescore
  22. 2026-06-01 13:49 UTCEPSS rescore
  23. 2026-05-31 22:28 UTCEPSS rescore
  24. 2026-05-31 22:28 UTCEPSS rescore
  25. 2026-05-31 00:14 UTCEPSS rescore
  26. 2026-05-31 00:14 UTCEPSS rescore
  27. 2026-05-29 13:41 UTCEPSS rescore
  28. 2026-05-28 13:42 UTCEPSS rescore
  29. 2026-05-28 13:42 UTCEPSS rescore
  30. 2026-05-27 23:12 UTCEG score recompute
  31. 2026-05-27 23:12 UTCVendor advisory
  32. 2026-05-27 23:12 UTCGHSA enrichment
  33. 2026-05-27 13:38 UTCEPSS rescore
  34. 2026-05-27 13:38 UTCEPSS rescore
  35. 2026-05-26 14:31 UTCOSV refresh
  36. 2026-05-26 13:42 UTCEPSS rescore
  37. 2026-05-26 13:42 UTCEPSS rescore
  38. 2026-05-26 07:17 UTCEPSS rescore
  39. 2026-05-26 07:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2017-3144?
CVE-2017-3144 is a high vulnerability published on January 16, 2019. A vulnerability stemming from failure to properly clean up closed OMAPI connections can lead to exhaustion of the pool of socket descriptors available to the DHCP server. Affects ISC DHCP 4.1.0 to 4.1-ESV-R15, 4.2.0 to 4.2.8, 4.3.0 to 4.3.6. Older versions may also be affected but are well beyond…
When was CVE-2017-3144 disclosed?
CVE-2017-3144 was first published in the National Vulnerability Database on January 16, 2019, 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-2017-3144 actively exploited?
CVE-2017-3144 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-3144?
CVE-2017-3144 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.7.
How do I remediate CVE-2017-3144?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-3144, 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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