CVE-2018-0646: Directory traversal vulnerability in Explzh v.7.58 and earlier allows an attacker to read arbitrary files via

Q: How do I fix CVE-2018-0646?

explzh: upgrade to newer than 7.58. Exact commands for each OS are on this page.

Q: Is CVE-2018-0646 being exploited?

CVE-2018-0646 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-2018-0646 affect?

CVE-2018-0646 affects explzh. Severity is high (CVSS 7.8). Directory traversal vulnerability in Explzh v.7.58 and earlier allows an attacker to read arbitrary files via unspecified vectors.

This month

HIGH 7.8UPGRADE

CVE-2018-0646 is a high-severity flaw (CVSS 7.8) affecting explzh. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in Explzh v.7.58 and earlier allows an attacker to read arbitrary files via unspecified vectors.

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	2.0% (top 20%)
CISA exploited list	No
Weakness	CWE-22
Published	2018-09-04
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2018-09-04 13:29 UTCPublished CVE record published
2026-06-17 01:31 UTCUpdated Record last modified

ponsoftware explzh UPGRADE

Affected: <= 7.58

Fixed in: newer than 7.58

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 7.58 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade explzh

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-2018-0646?

explzh: upgrade to newer than 7.58. Exact commands for each OS are on this page.

Is CVE-2018-0646 being exploited?

CVE-2018-0646 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-2018-0646 affect?

CVE-2018-0646 affects explzh. Severity is high (CVSS 7.8). Directory traversal vulnerability in Explzh v.7.58 and earlier allows an attacker to read arbitrary files via unspecified vectors.

How urgent is CVE-2018-0646?

Priority 47/100. High severity

References

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