What is CVE-2018-0646?

CVE-2018-0646 is a high-severity vulnerability in Pon Software Explzh, classified under Path Traversal. CVSS score: 7.8/10. Published 2018-09-04.

How severe is CVE-2018-0646?

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

Path Traversal in Pon Software Explzh

CVE-2018-0646

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

Vulnerability class: Path Traversal (Directory Traversal)

Published 2018-09-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.020 (79.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Pon Software Explzh — versions v.7.58 and earlier
Ponsoftware Explzh

Weakness classification (CWE)

CWE-22 — Path Traversal

References

www.ponsoftware.com/archiver/explzh/explzh.htm (Vendor Advisory)
jvn.jp/en/jp/JVN55813866/index.html (VDB Entry, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-0646?: CVE-2018-0646 is a high-severity vulnerability in Pon Software Explzh, classified under Path Traversal. CVSS score: 7.8/10. Published 2018-09-04.
How severe is CVE-2018-0646?: High severity. CVSS v3 base score is 7.8 out of 10.