MEDIUM

CVE-2018-14665

CVSS v3

6.6

MEDIUM

EPSS Score

27.0 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

CVE-2018-14665 Red Hat Product Security441 products fixed
xorg-x11-server: Incorrect permission check in Xorg X server allows for privilege escalation
RHSA-2018:3410 Red Hat Product Security115 products fixed
Red Hat Security Advisory: xorg-x11-server security update

Full record on NVD

Description

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.

Technical details

Published: 2018-10-25
Exploit-DB: EDB-45697 EDB-45742 EDB-45832 EDB-45908 EDB-45922 EDB-45938 EDB-46142 EDB-47701

Frequently asked questions

What is CVE-2018-14665?

Is CVE-2018-14665 actively exploited?

Active exploitation of CVE-2018-14665 has not been confirmed. Its EPSS score was 27.0% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-14665?

CVE-2018-14665 has a CVSS v3 base score of 6.6 (MEDIUM severity).

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