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CVE-2018-0646: Explzh allows attackers to read any file

CVE-2018-0646 · published 8 years ago

Summary

The Explzh file compression program (versions 7.58 and earlier) can be tricked into showing any file on the system. This could let a malicious user see confidential documents or system files. Upgrade to a newer version or apply the vendor's fix and restrict who can use the program.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
ponsoftware	explzh	<= 7.58 `cpe:2.3:a:ponsoftware:explzh::::::::`

Original advisory text

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

References

http://jvn.jp/en/jp/JVN55813866/index.html Third Party Advisory VDB Entry
https://www.ponsoftware.com/archiver/explzh/explzh.htm#explz759 Vendor Advisory

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker full control (estimated)

Severity

7.8 High

Exploitation

2% chance of attack within 30 days

Type

CWE-22Path Traversal

Timeline

Published4 Sep 2018

Updated4 Nov 2026

First seen29 Sep 2026

Sources

CVE-2018-0646 · NVD

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