CVE-2018-14734

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free).

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

July 29, 2018

Last Modified

November 21, 2024

References (28)

Vendor Advisories for CVE-2018-14734(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(10)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-extra-4.4.0-138-generic (4.4.0-138.164~14.04.1) @ trusty2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-1036-azure (4.15.0-1036.38~14.04.2) @ trusty2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-43-lowlatency (4.15.0-43.46) @ bionic2026-05-28ubuntu
ubuntulinux-image-generic-lts-trusty (3.13.0.164.154) @ precise2026-05-28ubuntu
ubuntulinux-image-extra-4.4.0-138-generic (4.4.0-138.164) @ xenial2026-05-28ubuntu
ubuntulinux-image-unsigned-4.15.0-43-lowlatency (4.15.0-43.46~16.04.1) @ xenial2026-05-28ubuntu
ubuntulinux-image-extra-3.13.0-164-generic (3.13.0-164.214) @ trusty2026-05-28ubuntu
redhatkernel-rt-0:3.10.0-1062.rt56.1022.el72019-08-07redhat
redhatkernel-0:3.10.0-1062.el72019-08-06redhat
redhatkernel-alt-0:4.14.0-115.7.1.el7a2019-04-23redhat

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.

Affected Packages

(7 across 6 ecosystems)
Debian:8(2)
PackageVulnerable rangeFixed inDependents
linux3.16.36-1 ... 3.16.7-ckt9-3~deb8u1~bpo70+1 (60 versions)3.16.59-1—
linux-4.94.9.110-1~deb8u14.9.110-3+deb9u5~deb8u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux—4.17.14-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—4.17.14-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—4.17.14-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—4.17.14-1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
linux4.9.107-1 ... 4.9.88-1~bpo8+1 (36 versions)4.9.110-3+deb9u5—

Weakness Classification(1)

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

Additional Vendor Advisories

(8)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 29× 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 124 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2018-14734?
CVE-2018-14734 is a high vulnerability published on July 29, 2018. drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucmaleavemulticast to access a certain data structure after a cleanup step in ucmaprocessjoin, which allows attackers to cause a denial of service (use-after-free).
When was CVE-2018-14734 disclosed?
CVE-2018-14734 was first published in the National Vulnerability Database on July 29, 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-2018-14734 actively exploited?
CVE-2018-14734 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.4% of all scored CVEs.
What is the CVSS score of CVE-2018-14734?
CVE-2018-14734 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2018-14734?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-14734, 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.

Dependency Blast Radius

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