CVE-2020-27187

Name: CVE-2020-27187
Creator: NVD / NIST
Published: 2020-10-26T17:15:12.813+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2020-27187 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An issue was discovered in KDE Partition Manager 4.1.0 before 4.2.0. The kpmcore_externalcommand helper contains a logic flaw in which the service invoking D-Bus is not properly checked. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

An issue was discovered in KDE Partition Manager 4.1.0 before 4.2.0. The kpmcore_externalcommand helper contains a logic flaw in which the service invoking D-Bus is not properly checked. An attacker on the local machine can replace /etc/fstab, and execute mount and other partitioning related commands, while KDE Partition Manager is running. the mount command can then be used to gain full root privileges.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.42%

33.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Kde	Partition Manager	>= 4.1.0, < 4.2.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=1890199Issue Tracking, Vendor Advisory
https://github.com/KDE/partitionmanager/compare/v4.1.0...v4.2.0Release Notes, Third Party Advisory
https://kde.org/info/security/advisory-20201017-1.txtPatch, Vendor Advisory
https://security.gentoo.org/glsa/202011-03Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1890199Issue Tracking, Vendor Advisory
https://github.com/KDE/partitionmanager/compare/v4.1.0...v4.2.0Release Notes, Third Party Advisory
https://kde.org/info/security/advisory-20201017-1.txtPatch, Vendor Advisory
https://security.gentoo.org/glsa/202011-03Third Party Advisory

Timeline

Published: Oct 26, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27187?

How severe is CVE-2020-27187?

CVE-2020-27187 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27187?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27187?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST