CVE-2018-14665

MEDIUMNVD 6.66.6—
EchelonGraph scoreMEDIUM confidence

Score 6.6 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekWeaponized
6.6
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 27%CVSS: 6.6Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.

CVSS v3
6.6
EG Score
6.6(medium)
EPSS
97.8%
KEV
Not listed

Published

October 25, 2018

Last Modified

August 29, 2025

References (40)

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuxserver-xorg-core (2:1.20.1-3ubuntu2.1) @ cosmic2026-05-28ubuntu
redhatxorg-x11-server-0:1.20.1-5.1.el72018-10-30redhat

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 / 37× 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. 2026-07-22 22:13 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
  4. 2026-07-21 03:17 UTCOSV refresh
  5. 2026-07-20 17:04 UTCEPSS rescore
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  7. 2026-07-19 14:28 UTCEPSS rescore
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  22. 2026-07-05 02:27 UTCEPSS rescore
  23. 2026-07-04 06:28 UTCEPSS rescore
  24. 2026-07-03 22:56 UTCOSV refresh
  25. 2026-07-02 16:54 UTCEPSS rescore
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  1. 2026-07-01 15:03 UTCEPSS rescore
  2. 2026-07-01 15:03 UTCEPSS rescore
  3. 2026-06-30 23:19 UTCEPSS rescore
  4. 2026-06-30 23:19 UTCEPSS rescore
  5. 2026-06-28 04:53 UTCEPSS rescore
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  7. 2026-06-27 03:06 UTCEPSS rescore
  8. 2026-06-25 13:47 UTCEPSS rescore
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  10. 2026-06-24 14:02 UTCEPSS rescore
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  16. 2026-06-18 17:50 UTCEPSS rescore
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  20. 2026-06-16 17:50 UTCEPSS rescore
  21. 2026-06-16 17:50 UTCEPSS rescore
  22. 2026-06-15 17:45 UTCEPSS rescore
  23. 2026-06-15 10:43 UTCOSV refresh
  24. 2026-06-14 23:14 UTCEPSS rescore
  25. 2026-06-14 23:14 UTCEPSS rescore
  26. 2026-06-13 22:58 UTCEPSS rescore
  27. 2026-06-13 22:58 UTCEPSS rescore
  28. 2026-06-12 23:09 UTCEPSS rescore
  29. 2026-06-11 13:57 UTCEPSS rescore
  30. 2026-06-10 22:16 UTCEPSS rescore
  31. 2026-06-10 13:19 UTCEPSS rescore
  32. 2026-06-07 15:22 UTCEPSS rescore
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  34. 2026-06-06 13:45 UTCEPSS rescore
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  40. 2026-06-04 13:10 UTCEPSS rescore
  41. 2026-06-04 13:10 UTCEPSS rescore
  42. 2026-06-02 20:11 UTCEPSS rescore
  43. 2026-06-02 20:11 UTCEPSS rescore
  44. 2026-06-01 13:49 UTCEPSS rescore
  45. 2026-05-31 22:29 UTCEPSS rescore
  46. 2026-05-31 22:28 UTCEPSS rescore
  47. 2026-05-31 00:14 UTCEPSS rescore
  48. 2026-05-31 00:14 UTCEPSS rescore
  49. 2026-05-29 13:41 UTCEPSS rescore
  50. 2026-05-28 13:42 UTCEPSS rescore
  51. 2026-05-28 13:42 UTCEPSS rescore
  52. 2026-05-28 01:41 UTCEG score recompute
  53. 2026-05-28 01:41 UTCVendor advisory
  54. 2026-05-28 01:41 UTCGHSA enrichment
  55. 2026-05-27 13:38 UTCEPSS rescore
  56. 2026-05-27 13:38 UTCEPSS rescore

Publicly available exploits

(10 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC) (8 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-47701✓ verified
    First seen Nov 20, 2019

    Xorg X11 Server - Local Privilege Escalation (Metasploit)

    Open source ↗
  • Exploit-DBEDB-46142
    First seen Jan 14, 2019

    xorg-x11-server < 1.20.3 (Solaris 11) - 'inittab Local Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-45938
    First seen Dec 4, 2018

    Xorg X11 Server (AIX) - Local Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-45922
    First seen Nov 30, 2018

    xorg-x11-server < 1.20.3 - 'modulepath' Local Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-45908✓ verified
    First seen Nov 26, 2018

    Xorg X11 Server - SUID privilege escalation (Metasploit)

    Open source ↗
  • Exploit-DBEDB-45832
    First seen Nov 13, 2018

    xorg-x11-server < 1.20.1 - Local Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-45742
    First seen Oct 30, 2018

    xorg-x11-server 1.20.3 - Privilege Escalation

    Open source ↗
  • GitHub PoCjas502n/CVE-2018-14665
    First seen Oct 27, 2018

    OpenBsd_CVE-2018-14665

    Open source ↗
  • Exploit-DBEDB-45697
    First seen Oct 25, 2018

    xorg-x11-server < 1.20.3 - Local Privilege Escalation

    Open source ↗
  • Metasploitexploit/aix/local/xorg_x11_server✓ verified
    First seen Oct 25, 2018

    Xorg X11 Server Local Privilege Escalation

    Open source ↗

Frequently asked(5)

What is CVE-2018-14665?
CVE-2018-14665 is a medium vulnerability published on October 25, 2018. A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root…
When was CVE-2018-14665 disclosed?
CVE-2018-14665 was first published in the National Vulnerability Database on October 25, 2018, with the most recent update on August 29, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-14665 actively exploited?
CVE-2018-14665 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-14665?
CVE-2018-14665 has a CVSS v3 base score of 6.6 (NVD).
How do I remediate CVE-2018-14665?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-14665, 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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