HOMEVULNERABILITIESCVE-2020-27187
HIGH

CVE-2020-27187

NVD-CWE-noinfoPublished: October 26, 2020· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-27187 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

kde1 product(s)
partition manager
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://kde.org/info/security/advisory-20201017-1.txt
PATCHhttps://kde.org/info/security/advisory-20201017-1.txt
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1890199
ADVISORYhttps://github.com/KDE/partitionmanager/compare/v4.1.0...v4.2.0
ADVISORYhttps://security.gentoo.org/glsa/202011-03
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1890199
ADVISORYhttps://github.com/KDE/partitionmanager/compare/v4.1.0...v4.2.0
ADVISORYhttps://security.gentoo.org/glsa/202011-03

All References (8)

→
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

Quick Facts

CVE IDCVE-2020-27187
CVSS Score7.8 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedOct 26, 2020

Related CVEs (NVD-CWE-noinfo)

CVE-2003-0374
10.0
CVE-2003-1333
10.0
CVE-2008-7196
10.0
CVE-2002-2264
10.0
CVE-2003-0789
10.0
CVE-2003-1361
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-27187 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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