THREATPORT/VULNERABILITY/CVE-2018-14665
MEDIUM SEVERITY

CVE-2018-14665

X Server vulnerability

CVSS
6.6
EPSS
27.0%
EPSS pct
98th
Exploited
No known
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.
Affected vendor
X.Org
Affected product
X Server
CVSS vector
CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-863 — Incorrect Authorization
Published
2018-10-25

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with physical access, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 27.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2018-14665

  • Confirm whether X.Org X Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-14665.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-14665

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