CVE-2014-0243: Check_MK through 1.2.5i2p1 allows local users to read arbitrary files via a symlink attack to a file in /var/l

Q: How do I fix CVE-2014-0243?

check mk: upgrade to newer than 1.2.5. Exact commands for each OS are on this page.

Q: Is CVE-2014-0243 being exploited?

CVE-2014-0243 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2014-0243 affect?

CVE-2014-0243 affects check mk. Severity is medium (CVSS 5.5). Check_MK through 1.2.5i2p1 allows local users to read arbitrary files via a symlink attack to a file in /var/lib/check_mk_agent/job.

Q: How urgent is CVE-2014-0243?

Priority 36/100. Public exploit reference

Routine

MEDIUM 5.5UPGRADE

CVE-2014-0243 is a medium-severity flaw (CVSS 5.5) affecting check mk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Check_MK through 1.2.5i2p1 allows local users to read arbitrary files via a symlink attack to a file in /var/lib/check_mk_agent/job.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-59
Published	2018-07-19
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: check mk project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-07-19 17:29 UTCPublished CVE record published
2026-06-17 00:02 UTCUpdated Record last modified

check mk project check mk UPGRADE

Affected: <= 1.2.5 · 1.2.5 i2p1

Fixed in: newer than 1.2.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy check-mk || rpm -q check-mk || check-mk --version

2. UPGRADE to newer than 1.2.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade check-mk

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade check-mk

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-0243?

check mk: upgrade to newer than 1.2.5. Exact commands for each OS are on this page.

Is CVE-2014-0243 being exploited?

CVE-2014-0243 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-0243 affect?

CVE-2014-0243 affects check mk. Severity is medium (CVSS 5.5). Check_MK through 1.2.5i2p1 allows local users to read arbitrary files via a symlink attack to a file in /var/lib/check_mk_agent/job.

How urgent is CVE-2014-0243?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2017-9781 MEDIUM 6.1 DOWNGRADE A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.4.0x prior to 1.4.0p6, allowing an un
CVE-2017-11507 MEDIUM 6.1 DOWNGRADE A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.2.8x prior to 1.2.8p25 and 1.4.0x pri

References

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