CVE-2018-0543: Untrusted search path vulnerability in Jtrim 1.53c and earlier (Installer) allows an attacker to gain privileg

Q: How do I fix CVE-2018-0543?

jtrim: upgrade to newer than 1.53c. Exact commands for each OS are on this page.

Q: Is CVE-2018-0543 being exploited?

CVE-2018-0543 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-2018-0543 affect?

CVE-2018-0543 affects jtrim. Severity is high (CVSS 7.8). Untrusted search path vulnerability in Jtrim 1.53c and earlier (Installer) allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

This month

HIGH 7.8UPGRADE

CVE-2018-0543 is a high-severity flaw (CVSS 7.8) affecting jtrim. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Untrusted search path vulnerability in Jtrim 1.53c and earlier (Installer) allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-426
Published	2018-03-09
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: woodybells

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

Am I affected?

Timeline

2018-03-09 16:29 UTCPublished CVE record published
2026-06-17 01:31 UTCUpdated Record last modified

woodybells jtrim UPGRADE

Affected: <= 1.53c

Fixed in: newer than 1.53c

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy jtrim || rpm -q jtrim || jtrim --version

2. UPGRADE to newer than 1.53c (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade jtrim

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade jtrim

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-2018-0543?

jtrim: upgrade to newer than 1.53c. Exact commands for each OS are on this page.

Is CVE-2018-0543 being exploited?

CVE-2018-0543 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-2018-0543 affect?

CVE-2018-0543 affects jtrim. Severity is high (CVSS 7.8). Untrusted search path vulnerability in Jtrim 1.53c and earlier (Installer) allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.

How urgent is CVE-2018-0543?

Priority 42/100. High severity

References

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