CVE-2018-14634

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-01-26), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 15%CVSS: 7.8Exploit: cisa kev · ssvc active · epss top5pct · public exploitExposed: 0

A fix is available — apply it.

An integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
15%
EPSS %ILE
96%
KEV
⚠ Exploited

Published

September 25, 2018

Last Modified

January 27, 2026

Advisory Details (10)

Auto-updated Jun 4, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
redhat Patch Available
https://access.redhat.com/errata/RHSA-2018:3586
redhat Patch Available

Affected: Red Hat Enterprise Linux 7.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2018:3540
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.5 Advanced Update Support.

https://access.redhat.com/errata/RHSA-2018:2933
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.7 Extended Update Support.

https://access.redhat.com/errata/RHSA-2018:2925
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.6 Advanced Update Support and Red Hat Enterprise Linux 6.6 Telco Extended Update Support.

https://access.redhat.com/errata/RHSA-2018:2924
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.

https://access.redhat.com/errata/RHSA-2018:2846
redhat Patch Available

Affected: Red Hat Enterprise Linux 7.

https://access.redhat.com/errata/RHSA-2018:2763
redhat Patch Available

Affected: Red Hat Enterprise Linux 7.

https://access.redhat.com/errata/RHSA-2018:2748
generic
http://www.securityfocus.com/bid/105407
generic🟡 PoC Available

oss-security - CVE-2021-33910: Denial of service (stack exhaustion) in systemd (PID 1)

http://www.openwall.com/lists/oss-security/2021/07/20/2

Patch Availability(14)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-extra-3.13.0-160-generic (3.13.0-160.210) @ trusty2026-07-28ubuntu
ubuntulinux-image-3.2.0-136-highbank (3.2.0-136.182) @ precise2026-07-28ubuntu
ubuntulinux-image-generic-lts-trusty (3.13.0.160.150) @ precise2026-07-28ubuntu
redhatkernel-0:2.6.32-358.94.1.el62018-11-20redhat
redhatkernel-0:3.10.0-327.76.1.el72018-11-13redhat
redhatkernel-0:3.10.0-693.43.1.el72018-11-13redhat
redhatkernel-rt-1:3.10.0-693.43.1.rt56.630.el6rt2018-11-13redhat
redhatkernel-0:3.10.0-514.61.1.el72018-11-13redhat
redhatkernel-0:2.6.32-573.65.2.el62018-10-17redhat
redhatkernel-0:2.6.32-504.76.2.el62018-10-16redhat
redhatkernel-0:2.6.32-431.93.2.el62018-10-16redhat
redhatkernel-0:2.6.32-754.6.3.el62018-10-09redhat
redhatkernel-rt-0:3.10.0-862.14.4.rt56.821.el72018-09-25redhat
redhatkernel-0:3.10.0-862.14.4.el72018-09-25redhat

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

(14)

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 69× in last 7d / 396× 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. 2026-07-28 11:57 UTCVendor advisory
  2. 2026-07-28 11:56 UTCGHSA enrichment
  3. 2026-07-28 08:07 UTCVendor advisory
  4. 2026-07-28 08:06 UTCGHSA enrichment
  5. 2026-07-28 04:17 UTCVendor advisory
  6. 2026-07-28 04:17 UTCGHSA enrichment
  7. 2026-07-28 00:28 UTCVendor advisory
  8. 2026-07-28 00:28 UTCGHSA enrichment
  9. 2026-07-27 20:41 UTCVendor advisory
  10. 2026-07-27 20:41 UTCGHSA enrichment
  11. 2026-07-27 19:24 UTCCISA KEV update
  12. 2026-07-27 17:17 UTCCISA KEV update
  13. 2026-07-27 16:51 UTCVendor advisory
  14. 2026-07-27 16:51 UTCGHSA enrichment
  15. 2026-07-27 13:03 UTCVendor advisory
  16. 2026-07-27 13:03 UTCGHSA enrichment
  17. 2026-07-27 09:15 UTCVendor advisory
  18. 2026-07-27 09:14 UTCGHSA enrichment
  19. 2026-07-27 05:26 UTCVendor advisory
  20. 2026-07-27 05:26 UTCGHSA enrichment
  21. 2026-07-27 01:39 UTCVendor advisory
  22. 2026-07-27 01:38 UTCGHSA enrichment
  23. 2026-07-26 21:50 UTCVendor advisory
  24. 2026-07-26 21:50 UTCGHSA enrichment
  25. 2026-07-26 18:02 UTCEG score recompute
Show 75 more
  1. 2026-07-26 18:02 UTCVendor advisory
  2. 2026-07-26 18:02 UTCGHSA enrichment
  3. 2026-07-26 14:51 UTCEPSS rescore
  4. 2026-07-26 14:51 UTCEPSS rescore
  5. 2026-07-26 14:13 UTCEG score recompute
  6. 2026-07-26 14:13 UTCVendor advisory
  7. 2026-07-26 14:12 UTCGHSA enrichment
  8. 2026-07-26 10:24 UTCVendor advisory
  9. 2026-07-26 10:24 UTCGHSA enrichment
  10. 2026-07-26 06:23 UTCVendor advisory
  11. 2026-07-26 06:23 UTCGHSA enrichment
  12. 2026-07-26 02:26 UTCEG score recompute
  13. 2026-07-26 02:26 UTCVendor advisory
  14. 2026-07-26 02:25 UTCGHSA enrichment
  15. 2026-07-24 14:14 UTCEPSS rescore
  16. 2026-07-23 14:15 UTCEPSS rescore
  17. 2026-07-23 14:15 UTCEPSS rescore
  18. 2026-07-23 01:33 UTCEG score recompute
  19. 2026-07-23 00:02 UTCEG score recompute
  20. 2026-07-23 00:02 UTCVendor advisory
  21. 2026-07-23 00:01 UTCGHSA enrichment
  22. 2026-07-22 22:13 UTCEG score recompute
  23. 2026-07-22 20:13 UTCVendor advisory
  24. 2026-07-22 20:13 UTCGHSA enrichment
  25. 2026-07-22 19:40 UTCCISA KEV update
  26. 2026-07-22 16:21 UTCEG score recompute
  27. 2026-07-22 16:21 UTCVendor advisory
  28. 2026-07-22 16:20 UTCGHSA enrichment
  29. 2026-07-22 14:04 UTCEPSS rescore
  30. 2026-07-22 12:13 UTCVendor advisory
  31. 2026-07-22 12:13 UTCGHSA enrichment
  32. 2026-07-22 08:25 UTCVendor advisory
  33. 2026-07-22 08:25 UTCGHSA enrichment
  34. 2026-07-22 04:38 UTCVendor advisory
  35. 2026-07-22 04:38 UTCGHSA enrichment
  36. 2026-07-22 00:38 UTCVendor advisory
  37. 2026-07-22 00:38 UTCGHSA enrichment
  38. 2026-07-21 19:47 UTCVendor advisory
  39. 2026-07-21 19:47 UTCGHSA enrichment
  40. 2026-07-21 15:56 UTCEG score recompute
  41. 2026-07-21 15:56 UTCVendor advisory
  42. 2026-07-21 15:56 UTCGHSA enrichment
  43. 2026-07-21 15:21 UTCEPSS rescore
  44. 2026-07-21 14:37 UTCCISA KEV update
  45. 2026-07-21 12:07 UTCVendor advisory
  46. 2026-07-21 12:07 UTCGHSA enrichment
  47. 2026-07-21 08:19 UTCVendor advisory
  48. 2026-07-21 08:19 UTCGHSA enrichment
  49. 2026-07-21 04:31 UTCVendor advisory
  50. 2026-07-21 04:31 UTCGHSA enrichment
  51. 2026-07-21 00:43 UTCVendor advisory
  52. 2026-07-21 00:43 UTCGHSA enrichment
  53. 2026-07-20 20:55 UTCVendor advisory
  54. 2026-07-20 20:55 UTCGHSA enrichment
  55. 2026-07-20 17:07 UTCEG score recompute
  56. 2026-07-20 17:07 UTCVendor advisory
  57. 2026-07-20 17:07 UTCGHSA enrichment
  58. 2026-07-20 17:04 UTCEPSS rescore
  59. 2026-07-20 17:04 UTCEPSS rescore
  60. 2026-07-20 13:18 UTCVendor advisory
  61. 2026-07-20 13:18 UTCGHSA enrichment
  62. 2026-07-20 09:30 UTCVendor advisory
  63. 2026-07-20 09:30 UTCGHSA enrichment
  64. 2026-07-20 05:42 UTCVendor advisory
  65. 2026-07-20 05:41 UTCGHSA enrichment
  66. 2026-07-20 01:54 UTCVendor advisory
  67. 2026-07-20 01:54 UTCGHSA enrichment
  68. 2026-07-19 22:06 UTCVendor advisory
  69. 2026-07-19 22:06 UTCGHSA enrichment
  70. 2026-07-19 18:18 UTCVendor advisory
  71. 2026-07-19 18:18 UTCGHSA enrichment
  72. 2026-07-19 14:30 UTCVendor advisory
  73. 2026-07-19 14:30 UTCGHSA enrichment
  74. 2026-07-19 10:42 UTCVendor advisory
  75. 2026-07-19 10:42 UTCGHSA enrichment

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCluan0ap/cve-2018-14634
    First seen Oct 8, 2018

    proof-of-concept (PoC) for linux dists based on Debian, CentOS and RedHat - exploit 1

    Open source ↗
  • Exploit-DBEDB-45516
    First seen Sep 26, 2018

    Linux Kernel 2.6.x / 3.10.x / 4.14.x (RedHat / Debian / CentOS) (x64) - 'Mutagen Astronomy' Local Privilege Escalation

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2018-14634?
CVE-2018-14634 is a critical vulnerability published on September 25, 2018. An integer overflow flaw was found in the Linux kernel's createelftables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable.
When was CVE-2018-14634 disclosed?
CVE-2018-14634 was first published in the National Vulnerability Database on September 25, 2018, with the most recent update on January 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-14634 actively exploited?
Yes. CISA added CVE-2018-14634 to the Known Exploited Vulnerabilities catalog on January 26, 2026, affecting Linux Kernel. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2018-14634?
CVE-2018-14634 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2018-14634?
CVE-2018-14634 affects Linux Kernel. 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-2018-14634?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-14634, 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

Explore the affected products and dependency analysis for CVE-2018-14634

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