CVE-2018-14634

HIGHNVD 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
7.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 15%CVSS: 7.8Exploit: NoneExposed: 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
96.3%
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) @ trusty2026-07-22ubuntu
ubuntulinux-image-3.2.0-136-highbank (3.2.0-136.182) @ precise2026-07-22ubuntu
ubuntulinux-image-generic-lts-trusty (3.13.0.160.150) @ precise2026-07-22ubuntu
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 77× in last 7d / 402× 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 773 total refreshes for this CVE.

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

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