Is CVE-2018-14665 in the CISA KEV catalog?

No. CVE-2018-14665 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-14665?

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

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

CVE-2018-14665 has an EPSS score of 27.04% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-14665?

Upgrade xorg-server on debian 11 to 2:1.20.3-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2018-14665

MEDIUMEPSS 98th pctl

6.6

CVSS v3

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.

CWE-863Incorrect Authorization

How to fix

Remediation Available

xorg-serverDebian

Fixed in:2:1.20.3-1CVE-2018-14665

xorg-serverUbuntu

Fixed in:2:1.19.6-1ubuntu4.2USN-3802-1

xorg-server-hwe-16.04Ubuntu

Fixed in:2:1.19.6-1ubuntu4.1~16.04.2USN-3802-1

xserver-xorg-coreUbuntu

Fixed in:2:1.19.6-1ubuntu4.2USN-3802-1

xserver-xorg-core-hwe-16.04Ubuntu

Fixed in:2:1.19.6-1ubuntu4.1~16.04.2USN-3802-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorPhysical

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

27.04%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2025-29927	Critical	9.1	99%	-	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-08-29.