What is CVE-2020-14004?

CVE-2020-14004 is a high-severity vulnerability in Icinga, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2020-06-12.

How severe is CVE-2020-14004?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2020-14004 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Icinga

CVE-2020-14004

An issue was discovered in Icinga2 before v2.12.0-rc1. The prepare-dirs script (run as part of the icinga2 systemd service) executes chmod 2750 /run/icinga2/cmd. /run/icinga2 is under control of an unprivileged user by default. If /run/icinga2/cmd is a symlink, then it will by followed and arbitrary files can be changed to mode 2750 by the unprivileged icinga2 user.

Published 2020-06-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Icinga — versions 2.12.0
openSUSE Backports Sle — versions 15.0
openSUSE Leap — versions 15.1, 15.2

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-14004

References

bugzilla.suse.com/show_bug.cgi (Issue Tracking, Broken Link)
github.com/Icinga/icinga2/pull/8045/commits/2f0f2e8c355b75fa4407d23f85feea037d2… (Patch, Third Party Advisory)
github.com/Icinga/icinga2/releases (Third Party Advisory, Release Notes)
www.openwall.com/lists/oss-security/2020/06/12/1 (Exploit, Mailing List, Third Party Advisory)
github.com/Icinga/icinga2/compare/v2.12.0-rc1...master (Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2020-11/msg00014.html (vendor-advisory, Mailing List, Third Party Advisory, Broken Link)

Frequently asked questions

What is CVE-2020-14004?: CVE-2020-14004 is a high-severity vulnerability in Icinga, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2020-06-12.
How severe is CVE-2020-14004?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-14004 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.